DOCSLIB.ORG

NFBB Vol. 32 1957

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
NFBB Vol. 32 1957 Howard L. Cogswell, Mills College, Oakland, Calif. Russel H. Pray, 662 Santa Rosa Ave., Berkeley, Calif. William K. Kirsher, .571 Fulton Ave., Sacramento, Calif. Lillian Henningson, 124 Cambridge Way, Piedmont, Calif. Address contributions for the N~VS to William K. Kirsher, F~itor-- .571 Fulton Avenue Sacramento 2.5, California PAGE EIGHTEEN THOUSAND AND FOUR CLIFF SWALLOWS by William K. Kirsher. 1 MIST NETS LEGALIZED IN CALIFORNIA. • . 4 MIST NET SUPPLIERS . • . • . • . 6 GULL BANDING IN THE KI~~TH by Carl Richardson • 7 NEVlS FROM TIIEBANDERS. 9 CHAPTER NOTES. • • • . • . • . • 10 EIGHTEEN THOUSAND AND FOUR CLIFF SWALLOWS b:{William K. Kirsher In the flat agricultural lands around Sacramento, California where in prlml- tive times Cliff swallows (petrochelidon p;trrhonota) must have been hard put to find nesting sites, today there are man-made structures that admirably fill the bird's needs for sheltered, elevated purchases for their mud nests. The species now populates the valley abundantly. Colonies are often found in culverts and under small bridges, some no higher than a man's head. In these, by working at night when all the birds are at the nest, practically the whole colony can be trapped by simultaneously closing both openings of the structure with large fish nets. Most of the m,allows flush at the first disturbance, fluttering to the nets where they are easily captured by hand. There are always a few reluctant ones that have to be flushed by shining a bright light (which the bander wears on his forehead) into the nest as he claps his hands and makes hissing sounds and other noises. The characteristic reaction of these birds is to shake their heads in obvious irritation, and, after several false starts, plunge from the nest. (cf. Stoner, Dayton, liStudies on the Bank Swallovr," Roosevelt Wild Life Annals, 4(2):127-233, 1936.) As they are captured the birds-are placed in gathering cages to await banding after which tiley are released into the night. They do not return until daylight. Using this technique 18,004 Cliff srrallows have been banded at 69 different colonies since 1949 by Wilbur H. Mayhew, Paul H. Steele, and William K. Kirsher joined from time to time by other banders whose assistance is gratefully acknowl- edged. Of these birds 17,393 were banded within a radius of thirty miles of Sacramento; the other 611 resulted from a sortie into Nevada. To this time there have been no recoveries from a distance. In any study of this kind the effects of disturbance must be considered, and, of course, most of these birds were grossly disturbed. There was one group of 192 birds, however, that was banded with the least possible disturbance. These were captured in the middle of the day, held just long enough to be banded, and then released. The return pattern of these birds, which offers a sort of control, is not different from that of those that were captured at night and re- leased into the darkness. To test the attachment the swallows have for their home colony, one group of 39 birds was carried forty miles away and released at the site of another active colony. Subsequent trapping of this second colony did not yield a single bird of thQse released. Most of them were recaptured later at the home site in a pattern little different from that of their undisplaced fellows. In other experiments: birds returned from Berkeley, 95 miles away; from the Farallon Islands, 22 miles at sea and a total distance of 115 miles; and at least three of nine birds returned over the Sierras from Nevada, surmounting an elevation barrier of no less than 7,200 feet in a distance of 70 miles. Cliff ~rallows do have a strong and abiding attachment for their nesting site. Possible detrimental effects on the eggs and young of the four to six hour absence of the parents was considered early in the work. At different times and at different colonies some fifty nests were numbered and their contents noted (with the aid of a specially designed periscope) at the time of banding and on subsequent visits at intervals that would reveal the nesting success. There was no evidence of damage due to banding activities. Summer nights in the Sacramento valley are warm, the mud nests are well insulated, and their retort ESTIMATED % NUMBER OF RETURNS 1st RETURNS 2nd RETURNS 3rd RETURNS 4th RETURNS 5th YEAR OF COLONY BIRDS YEAR AFTER YEAR AFTER YEAR AFTER YEAR AFTER YEAR AFTER CAPTUREIl BANDED BANDING BANDING BANDING BANDING ,BANDING 1951 20% 192 ADULTS 1952 95% 845 94 1953 95% 519 436 63 1954 95% 819 240 254 29 1955 60 - 70% 522 265 83 76 9 1956 95% 707 274 190 76 57 3 1952 95% 369 cJlIYENALS 1953 95% 354 54 1954 95% - 79 41 1955 60 - 70% 71 - 10 8 * 1956 95% 180 15 - 10 * 6 * * The third colony, furnishing 245 juvenals of 1952 sample and 185 juvenals of 1953 sample. was not worked in 1955 or 1956. 52 % or 2078 IJirus 27% or 1856IJirtis /5 % of 7/1 birds FOURTH YEAR 7% or 845 lJirds FIFTH YEAR 2% of /92 birds VAGRANCY PATTERN OF FIRST YEAR ADULT RETURNS /9 % or 7fJ4 birus SECOND YEAR //% or 369 lJirds THIRD YEAR 6 % of' 169 IJlrds FOURTH YEAR 5 % of' 124 birds shape prevents heat loss by convection. In every colony worked an abundant crop of young came off successfully, and the colonies continue to prosper after having been worked, in some cases twice each season, since 1951. Cliff ~{allows begin to arrive in the spring at least as early as February 25. They do not come as a complete group, but rather, the colonJT builds up over a period of two months or more. At one colony, where the nests remain from year to year, six swallows were captured February 26. Two weeks later 140 birds were taken, and on May 13, 330 - probably the full complement - were present. Most of the returning birds come to the same location at which they were banded, some even to the same nest among the hundreds of other nests of almost facsimile likeness. Where colonies are close together, however, there is some interchange. The lower right illustration represents the distribution of 373 first year returns of adults banded at one colony (circled dot) among fourteen colonies within a radius of 10 miles. All but 36 were recaptured at the home colony, and of these vagrants none were found more than four miles away. One second year return from this group was captured 9 miles away (top center circle). A compar- able number of birds from other near~r colonies appeared at the main colony considered here. The distribution of juvenal returns banded at the same colony was similar except that one was captured 23 miles to the southeast. There is also vagrancy during the breeding season, a subject considered by Dr. Mayhew in a paper presented at the 1953 AOU meeting. The return data for adults, presented in the table, were all gathered at two colonies situated in small culverts about a half mile apart. One, a double culvert~ has a popUlation each year of from 700 to 800 birds; the other, a single, averages about a fourth this number. Birds from the two culverts have a common foraging area, and there is a rather high interchange of populations involving about a fifth of the colonies. These colonies were selected to furnish return data because they have been worked longer and more thoroughly than any others. The first year, 1951, only part of the colonies (192 birds) was banded. In 1955 an accident with the nets penritted the escape of possibly 30 percent or more of the birds at one colony, and consequently data from this year are not used in constructing the graphs as they would only unrealistically reduce the return figures. The omission of these figures explains the irregular progression of sample size in the graphs. Efficiency of capture in the other four years is estimated at better than 95 percent. Juvenals are banded only when, as fully fledged and flying birds, they voluntarily leave the nest, and since only a small proportion of the young reach this stage at anyone time the sample is small. The nu~ber of juvenals banded at the two colonies described above has been augmented by a substantial number from a third colony. The juvenal returns are notable in that first, either they had already formed a destination urge toward their natal site, or perhaps they had migrated, wintered and returned in the company of the adults. And, second, of these juvenals that have returned to nest for the first time an average of 57 percent make it a second year, a higher percentage than is the case (about 47 percent) when the entire complement of a colony is banded including all ages. Other birds often share the shelter of the bridges with the ~rallows. Dur- ing the breeding season, Black phoebes and Barn ~rallows are frequently found in situations that permit them to be somewhat isolated from the busy Cliff swallows even under the same bridges. English sparrows sometimes take over swallow nests, but this is not common among Sacramento valley colonies. A dozen or more Red- shafted flickers have been captured while they were using bridge beams and supports for night roosts. Once (in the daytime) a Screech owl was found sitting in the mud cup of an unfinished ~rallow nest as though incubating eggs, but the height of the nests and the deep water below prevented investigation.
Load more

Recommended publications
  • And Wildlife, 1928-72
    Bibliography of Research Publications of the U.S. Bureau of Sport Fisheries and Wildlife, 1928-72 UNITED STATES DEPARTMENT OF THE INTERIOR BUREAU OF SPORT FISHERIES AND WILDLIFE RESOURCE PUBLICATION 120 BIBLIOGRAPHY OF RESEARCH PUBLICATIONS OF THE U.S. BUREAU OF SPORT FISHERIES AND WILDLIFE, 1928-72 Edited by Paul H. Eschmeyer, Division of Fishery Research Van T. Harris, Division of Wildlife Research Resource Publication 120 Published by the Bureau of Sport Fisheries and Wildlife Washington, B.C. 1974 Library of Congress Cataloging in Publication Data Eschmeyer, Paul Henry, 1916 Bibliography of research publications of the U.S. Bureau of Sport Fisheries and Wildlife, 1928-72. (Bureau of Sport Fisheries and Wildlife. Kesource publication 120) Supt. of Docs. no.: 1.49.66:120 1. Fishes Bibliography. 2. Game and game-birds Bibliography. 3. Fish-culture Bibliography. 4. Fishery management Bibliogra­ phy. 5. Wildlife management Bibliography. I. Harris, Van Thomas, 1915- joint author. II. United States. Bureau of Sport Fisheries and Wildlife. III. Title. IV. Series: United States Bureau of Sport Fisheries and Wildlife. Resource publication 120. S914.A3 no. 120 [Z7996.F5] 639'.9'08s [016.639*9] 74-8411 For sale by the Superintendent of Documents, U.S. Government Printing OfTie Washington, D.C. Price $2.30 Stock Number 2410-00366 BIBLIOGRAPHY OF RESEARCH PUBLICATIONS OF THE U.S. BUREAU OF SPORT FISHERIES AND WILDLIFE, 1928-72 INTRODUCTION This bibliography comprises publications in fishery and wildlife research au­ thored or coauthored by research scientists of the Bureau of Sport Fisheries and Wildlife and certain predecessor agencies. Separate lists, arranged alphabetically by author, are given for each of 17 fishery research and 6 wildlife research labora­ tories, stations, investigations, or centers.
    [Show full text]
  • Guidelines to the Use of Wild Birds in Research
    THE ORNITHOLOGICAL COUNCIL Providing Scientific Information about Birds GUIDELINES TO THE USE OF WILD BIRDS IN RESEARCH Special Publication 1997 Edited by Abbot S. Gaunt & Lewis W. Oring Third Edition 2010 Edited by Jeanne M. Fair, Editor-in-Chief Ellen Paul & Jason Jones, Associate Editors GUIDELINES TO THE USE OF WILD BIRDS IN RESEARCH Jeanne M. Fair1, Ellen Paul2, & Jason Jones3, Anne Barrett Clark4, Clara Davie4, Gary Kaiser5 1 Los Alamos National Laboratory, Atmospheric, Climate and Environmental Dynamics, MS J495, Los Alamos, NM 87506 2 Ornithological Council, 1107 17th St., N.W., Suite 250, Washington, D.C. 20036 3 Tetra Tech EC, 133 Federal Street, 6th floor, Boston, Massachusetts 02110 4 Binghamton University State University of New York, Department of Biology, PO BOX 6000 Binghamton, NY 13902-6000 5 402-3255 Glasgow Ave, Victoria, BC V8X 4S4, Canada Copyright 1997, 2010 by THE ORNITHOLOGICAL COUNCIL 1107 17th Street, N.W. Suite 250 Washington, D.C. 20036 http://www.nmnh.si.edu/BIRDNET Suggested citation Fair, J., E. Paul, and J. Jones, Eds. 2010. Guidelines to the Use of Wild Birds in Research. Washington, D.C.: Ornithological Council. Revision date August 2010 2 Dedication The Ornithological Council dedicates this 2010 revision to Lewis W. Oring and the late Abbot (Toby) S. Gaunt, whose commitment to the well-being of the birds for whom ornithologists share a deep and abiding concern has served our profession well for so many years. Toby Gaunt Lew Oring Revision date August 2010 3 Acknowledgments and disclaimer Third edition The Ornithological Council thanks the Office of Laboratory Animal Welfare of the National Institutes of Health for their financial support for the production of this revision.
    [Show full text]
  • AN EVALUATION of TECHNIQUES for CAPTURING RAPTORS in EAST-CENTRAL MINNESOTA by Mark R
    AN EVALUATION OF TECHNIQUES FOR CAPTURING RAPTORS IN EAST-CENTRAL MINNESOTA by Mark R. Fuller and Glenn S. Christenson Department of Ecologyand BehavioralBiology University of Minnesota 310 Biological SciencesCenter St. Paul, Minnesota 55108 ABSTRACT. To meet the objectivesof a study,several species of raptorshad to be trapped on a 9,880-hectare study area of heterogenoushabitat types. Bal-chatri,mist net, Swedish Goshawk,and automatic bow-net traps (and combinationsof these traps) were used in severalgeneral habitat situations.Mist nets combined with a baited bal-chatri or tethered bait were most successfulin capturingbirds, and the bal-chatrisalone and mist nets alone were next most effective. Trappingwas found to be most productivein deciduousupland habitats where an openingin the canopy or break in the understoryoccurred. Trapping along a woodlot-fieldedge was also effective. Strigiformeswere most often trappedjust before sunriseor just after sunset,while falconiformeswere most often capturedin the late morning and late afternoon. Trapping was least efficient from Decemberto February. A different trap type from that i•sedin the initial captureis often most effectivefor recaptur- ing raptors.Maintenance of healthybait animalsand frequent trap checksare emphasized. Introduction This paperpresents results from a combinationof methodsused to captureand recapture Great HornedOwls (Bubo virginianus), Barred Owls (Strix varia),Red-tailed Hawks (Buteo }amaicensis),and Broad-wingedHawks (Buteo platypterus) on a 9,880-hectarestudy area in east-central
    [Show full text]
  • Filed Techniques-Bats
    Expedition Field Techniques BATS Kate Barlow Geography Outdoors: the centre supporting field research, exploration and outdoor learning Royal Geographical Society with IBG 1 Kensington Gore London SW7 2AR Tel +44 (0)20 7591 3030 Fax +44 (0)20 7591 3031 Email [email protected] Website www.rgs.org/go October 1999 ISBN 978-0-907649-82-3 Cover illustration: A Noctilio leporinus mist-netted during an expedition, FFI Montserrat Biodiversity Project 1995, by Dave Fawcett. Courtesy of Kate Jones, and taken from the cover of her thesis entitled ‘Evolution of bat life histories’, University of Surrey. Expedition Field Techniques BATS CONTENTS Acknowledgements Preface Section One: Bats and Fieldwork 1 1.1 Introduction 1 1.2 Literature Reviews 3 1.3 Licences 3 1.4 Health and Safety 4 1.4.1 Hazards associated with bats 5 1.5 Ethics 6 1.6 Project Planning 6 Section Two: Capture Techniques 8 2.1 Introduction 8 2.2 Catching bats 8 2.2.1 Mist-nets 8 2.2.2 Mist-net placement 10 2.2.3 Harp-traps 12 2.2.4 Harp-trap placement 13 2.2.5 Comparison of mist-net and harp-traps 13 2.2.6 Hand-netting for bats 14 2.3 Sampling for bats 14 Section Three: Survey Techniques 18 3.1 Introduction 18 3.2 Surveys at roosts 18 3.2.1 Emergence counts 18 3.2.2 Roost counts 19 3.3 Population estimates 20 Expedition Field Techniques Section Four: Processing Bats 22 4.1 Handling bats 22 4.1.1 Removing bats from mist-nets 22 4.1.2 Handling bats 24 4.2 Assessment of age and reproductive status 25 4.3 Measuring bats 26 4.4 Identification 28 4.5 Data recording 29 Section Five: Specimen Preparation
    [Show full text]
  • Chapter 3. Capture and Marking
    CHAPTER 3. CAPTURE AND MARKING A. Overview Scientific studies of birds often require that birds be captured to gather morphometric data and to collect samples for pathological, genetic, and biogeochemical analysis. These data and samples can be used to understand evolutionary relationships, genetics, population structure and dynamics, comparative anatomy and physiology, adaptation, behavior, parasites and diseases, geographic distributions, migration, and the general ecology of wild populations of birds. This knowledge informs us about avian biology and natural history and is necessary to effect science-based conservation and management policies for game and non-game species, endangered species, economically important species, and bird habitat conservation (White and Garrott 1990). Capture is generally necessary to mark birds, which allows scientists to investigate demography, migration/movement patterns, or identify specific individuals after release (Day et al. 1980). Many techniques have been developed to capture and mark birds (Nietfeld et al. 1994; Bub 1995). The assumption that marking does not affect the birds is critical because it is the basis for generalizing the data to unmarked birds (Murray and Fuller 2000). The purpose of this section is not to describe capture and marking techniques, but instead to discuss the effects that different capture and marking techniques have on a bird’s short- and long-term physiological well-being and survival. The more commonly used methods are covered and described briefly, but the focus is on the potential impacts of the method. Thus, even if a particular method is not covered, the researcher is alerted to concerns that may arise and questions to be considered in refining methods so as to reduce impacts.
    [Show full text]
  • Trapping White Ibises with Rocket Nets and Mist Nets in the Florida Everglades
    J. Field Ornithol. 74(2):187±192, 2003 Trapping White Ibises with rocket nets and mist nets in the Florida Everglades Julie A. Heath1 and Peter C. Frederick Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, Florida 32611 USA Received 30 April 2002; accepted 19 September 2002 ABSTRACT. We lured White Ibises (Eudocimus albus) to trap sites with decoy plastic ¯amingos and captured them with a rocket net or mist nets. Our ability to attract ibises to a site (and consequently our capture success) was affected by vegetation height and water depth but not by decoy numbers or their arrangement. Both the rocket net (37 ibises) and mist nets (97 ibises) caught birds. The number of birds captured per day was the same for both methods, but the rocket net trap captured more birds per set than did mist nets. Because mist nets were easy to reset we captured 1±2 birds per set multiple times in one day with mist nets. We preferred mist nets over rocket net traps because mist nets allowed for shorter bird processing times, greater ease of set up, and fewer safety considerations for transport and operation of the trap. Also, rocket nets required more equipment and expense. Although we discouraged other species from landing at a trap site, there was evidence that these techniques may also be useful for capturing other wading birds. SINOPSIS. Captura de ciguenÄas (Eudocimus albus) con redes de cohetes y redes de niebla en la Florida Atraimos ciguenÄas (Eudocimus albus) a lugares particulares utilizando senÄuelos de ¯amencos para atraparlas con redes de cohetes y con redes de niebla.
    [Show full text]
  • The Use of Nets in Wildlife Damage Management
    Human Health and Ecological Risk Assessment for the Use of Wildlife Damage Management Methods by USDA-PHIS-Wildlife Services Chapter XIII The Use of Nets in Wildlife Damage Management JULY 2017 Peer Reviewed Final August 2020 THE USE OF NETS IN WILDLIFE DAMAGE MANAGEMENT EXECUTIVE SUMMARY Nets are live capture devices used by USDA-APHIS-Wildlife Services (WS) for specific wildlife damage management projects. Birds were involved in 89% of the wildlife captured and virtually 100% of the dispersal. Fish and mammals were also involved in capture projects with take at 10% and 1%, respectively. Projects involving the use of nets were conducted primarily to protect aircraft from wildlife strikes, monitor wildlife for disease, and conduct research (e.g., capturing and marking or radio collaring birds and mammals to follow their movements). WS uses several netting systems including cannon/rocket nets, net guns, drop nets, mist nets and other netting systems. Cannon, air cannon, and rocket nets were the primary net system used, accounting for 66% of all wildlife captured using nets Animal and Plant Health Inspection Service (APHIS) evaluated the potential human health and environmental risks from WS’ proposed use of nets and determined that the risks to human health and the environment are negligible. Risks to workers are low based on WS personnel being trained in the proper use and set up of nets, net explosives, and wildlife handling in accordance with WS Directive 2.625. Risks to the general population are negligible because site selection and timing of activities minimizes exposure to the public and the fact that WS personnel are always present at the site during netting operations.
    [Show full text]
  • Capturing and Handling Wild Animals
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln USDA National Wildlife Research Center - Staff U.S. Department of Agriculture: Animal and Publications Plant Health Inspection Service 2009 Capturing and Handling Wild Animals Sanford D. Schemnitz Johns Hopkins University, [email protected] Gordon R. Batcheller Johns Hopkins University Matthew J. Lovallo Johns Hopkins University H. Bryant White Johns Hopkins University Michael W. Fall Johns Hopkins University Follow this and additional works at: https://digitalcommons.unl.edu/icwdm_usdanwrc Schemnitz, Sanford D.; Batcheller, Gordon R.; Lovallo, Matthew J.; White, H. Bryant; and Fall, Michael W., "Capturing and Handling Wild Animals" (2009). USDA National Wildlife Research Center - Staff Publications. 1191. https://digitalcommons.unl.edu/icwdm_usdanwrc/1191 This Article is brought to you for free and open access by the U.S. Department of Agriculture: Animal and Plant Health Inspection Service at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in USDA National Wildlife Research Center - Staff Publications by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Published in: N.J. Silvy (Ed.), The wildlife techniques manual. Johns Hopkins University Press, Baltimore, MD: 232-269. 3 Capturing and Handling Wild Animals SAN FORD D. SCH EM N ITZ, GORDON R. BATCHELLER, MATTH EW J. LOVALLO, H. BRYANT WHITE, AND MICHAEL W. FALL INTRODUCTION HE ART OF CAPTURING wild animals for food and clothing is as old as human existence on earth. However, in toclay's world, reasons for catch ~ T ing wild species are more diverse. Millions of wild animals are captured each year as part of damage and disease control programs, population regulation activities, wildlife management efforts, and research studies.
    [Show full text]
  • The EURING Exchange-Code 2ШШШ
    The EURING exchange-code 2ØØØ. Speek, G., Clark, J.A., Rohde, Z., Wassenaar, R.D. & Van Noordwijk, A.J. Heteren, the Netherlands Vogeltrekstation Arnhem Dutch Ringing Centre Oct 29, 2ØØ8 (for update information see at the end of this publication) EURING exchange-code 2ØØØ 1 - 143 © Copyright EURING. All rights reserved. No part of this publication may be reproduced (or stored in a retrieval system, or transmitted in any form or by any means) for commercial use, without the prior written permission of the copyright owner. When using this copyrighted file, which we promote, see to the proper citation, and please send EURING a copy of your publication. EURING General Secretary Dr. Wolfgang Fiedler Max Planck Research Centre for Ornithology Vogelwarte Radolfzell Schlossallee 2 D-78315 Radolfzell Germany www.euring.org Published for EURING, the European Union for Bird Ringing, by: Vogeltrekstation Arnhem PO Box 4Ø 6666 ZG Heteren the Netherlands June 2ØØ1 www.vogeltrekstation.nl ISBN: 9Ø-74638-13-9 Citation: Speek, G., Clark, J.A., Rohde, Z., Wassenaar, R.D. & Van Noordwijk, A.J. 2ØØ1. The EURING exchange-code 2ØØØ. Heteren. ISBN 9Ø-74638-13-9. This publication can be downloaded as a pdf-file from the EURING website: www.euring.org And also from the website of the Dutch Ringing Scheme: www.vogeltrekstation.nl The two former EURING code manuals, 'EURING Code Manual' (1966) and 'Code Manual New EURING' (1979), can also be downloaded (pdf) from the two websites mentioned above. Authors: Gerrit Speek Dutch Ringing Scheme, PO Box 40, 6666 ZG Heteren, the Netherlands. Jacquie A.
    [Show full text]
  • Atti V Convegno Dei Faunisti Veneti (2007)
    L’ASSOCIAZIONE FAUNISTI VENETI, fondata nel 1994, è un’associazione senza fini di lucro che intende promuovere, principalmente nell’ambito del Veneto, la ricerca scientifica sui Vertebrati, con particolare riguardo per la faunistica, l’ecologia e le applicazioni per la conservazione. Indirizza e coordina indagini collettive, organizza convegni, promuove attività formative e didattiche, realizza pubblicazioni scientifiche e documenti tecnici, anche in collaborazione con enti amministrativi e altre associazioni. www.faunistiveneti.it Comitato Scientifico Mauro Bon, Lucio Bonato, Giancarlo Fracasso, Francesco Mezzavilla, Francesco Scarton Comitato Organizzatore Marco Basso, Mauro Bon, Lucio Bonato, Eddi Boschetti, Michele Bottazzo, Diego Fasano, Giancarlo Fracasso, Francesco Mezzavilla, Michela Salvato, Francesco Scarton, Simone Tenan Con la collaborazione di: Veneto Agricoltura Museo di Storia Naturale di Venezia Con il patrocinio di: Regione Veneto Associazione Teriologica Italiana Centro Italiano Studi Ornitologici Societas Herpetologica Italica La redazione raccomanda per le citazioni di questo volume la seguente dizione: M. Bon, L. Bonato, F. Scarton (eds.), 2008. Atti 5° Convegno Faunisti Veneti. Boll. Mus. civ. St. Nat. Venezia, suppl. al vol. 58, pp. 368. In copertina: Averla maggiore, Lanius excubitor (disegno di P. Paolucci) ASSOCIAZIONE FAUNISTI VENETI Museo di Storia Naturale di Venezia ATTI 5° CONVEGNO FAUNISTI VENETI Legnaro, 12-13 maggio 2007 a cura di MAURO BON, LUCIO BONATO, FRANCESCO SCARTON PREFAZIONE Con questo volume siamo arrivati alla pubblicazione dei contributi scientifi- ci presentati al V convegno organizzato dall’Associazione Faunisti Veneti. Un volume ponderoso, per lo spazio che abbiamo inteso dare anche a molti poster, il cui livello non era certamente inferiore alle comunicazioni. Come i precedenti, anche questo volume di Atti è utile per fare il punto sulla ricerca faunistica nel Veneto, operata sia dai molti appassionati che dai pochi ricercatori strutturati.
    [Show full text]
  • Research in Northumberland
    NORTHUMBRIA RINGING GROUP 50th Anniversary Report Editors John Day & Ian Kerr Alan Hart Northumbria Ringing Group 50th Anniversary Report Editors: John Day & Ian Kerr Newcastle upon Tyne 2014 Front cover photograph: Kestrel hunting at Boulmer. Paul Galloway © Northumbria Ringing Group 2014 CONTENTS Title Author Page Introduction John Day & Ian Kerr 7 50th anniversary celebrations Ian Kerr 8 Historical overview Mike Nattrass & Bryan Galloway 10 Group photograph Ian Fisher 13 List of members, associates and friends Mike Nattrass & Bryan Galloway 14 1963 – 2012 NRG annual ringing totals Bryan Galloway 16 1963 – 2012 NRG species ringing totals Bryan Galloway 17 1963 – 2012 SPECIES ACCOUNTS Barn Owl Keith Brooks & John Steele 24 Blackbird Steve Anderson 28 Common Sandpiper John Richardson & John Day 30 Crested Tit Steve Anderson 34 Dipper John Richardson 36 Goldcrest John Day 40 Goosander Bryan Galloway & Brian Little 42 Grey Heron Ian Kerr 46 Kestrel Ian Kerr 48 Merlin Bryan Galloway & Mike Nattrass 50 Merlin in Co. Durham Mike Nattrass 53 Pied Flycatcher Anne Middleton 58 Reed Warbler Ian Fisher 64 Robin John Day 70 Roseate Tern Tom Cadwallender 74 Sedge Warbler Alan Johnston 78 Siskin Michael Holmes 84 Sparrowhawk Bryan Galloway 86 Storm Petrel Ian Fisher 88 Swallow Richard Barnes 92 Tawny Owl Mike Carr 100 Tufted Duck Andrew Rickeard 104 Selected ringing recoveries Bryan Galloway 106 John Steele REFERENCES List of publications and papers John Day 108 relating to the Group’s study area by NRG members, associates and friends THANKS TO EVERYONE 119 Introduction INTRODUCTION A 50th anniversary is a highlight for any organisation and a just cause for celebration.
    [Show full text]
  • Capture Techniques 12
    193 Capture Techniques 12 PETER H. BLOOM their weight and moult, their later movements, their Western Foundation of Vertebrate Zoology, longevity, and all that. Underneath, they are unabashed 439 Calle San Pablo, Camarillo, CA 93012 U.S.A. admirers of the wildness, magnificent strength, and awesome flight of creatures at the top of the animal WILLIAM S. CLARK pyramid. I wouldn’t call them childlike; but they do 2301 S. Whitehouse Crescent, Harlingen, TX 78550 U.S.A. have a youthful zest, and they will endure any hardship and go to any length to catch their birds.” JEFF W. KIDD While passion and enthusiasm for raptor trapping Western Foundation of Vertebrate Zoology, are contributing factors, trapping success depends upon 439 Calle San Pablo, Camarillo, CA 93012 U.S.A. a number of other factors too. Some species such as Common Kestrel (Falco tinnunculus), Black-shoul- dered Kite (Elanus caeruleus), chanting-goshawks (Melierax spp.), and Red-shouldered Hawk (Buteo lin- INTRODUCTION eatus) are easy to capture, whereas others, including many eagles, kites, and condors, require more sophisti- Many raptor studies, including those involving migra- cated techniques. Some raptors are more easily trapped tion, dispersal, home range use, anatomy, and toxicant on migration, whereas others are more easily trapped ingestion, require that birds be captured for examina- when nesting. The age of the bird also can be a factor. tion, marking, or both. This chapter describes a variety In general, juvenile raptors are easier to trap than adults, of field-tested techniques for capturing birds of prey. and hungry raptors always are more responsive to traps.
    [Show full text]