Written and Illustrated by Andrea Louvieaux
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Costa Rica 2020
Sunrise Birding LLC COSTA RICA TRIP REPORT January 30 – February 5, 2020 Photos: Talamanca Hummingbird, Sunbittern, Resplendent Quetzal, Congenial Group! Sunrise Birding LLC COSTA RICA TRIP REPORT January 30 – February 5, 2020 Leaders: Frank Mantlik & Vernon Campos Report and photos by Frank Mantlik Highlights and top sightings of the trip as voted by participants Resplendent Quetzals, multi 20 species of hummingbirds Spectacled Owl 2 CR & 32 Regional Endemics Bare-shanked Screech Owl 4 species Owls seen in 70 Black-and-white Owl minutes Suzy the “owling” dog Russet-naped Wood-Rail Keel-billed Toucan Great Potoo Tayra!!! Long-tailed Silky-Flycatcher Black-faced Solitaire (& song) Rufous-browed Peppershrike Amazing flora, fauna, & trails American Pygmy Kingfisher Sunbittern Orange-billed Sparrow Wayne’s insect show-and-tell Volcano Hummingbird Spangle-cheeked Tanager Purple-crowned Fairy, bathing Rancho Naturalista Turquoise-browed Motmot Golden-hooded Tanager White-nosed Coati Vernon as guide and driver January 29 - Arrival San Jose All participants arrived a day early, staying at Hotel Bougainvillea. Those who arrived in daylight had time to explore the phenomenal gardens, despite a rain storm. Day 1 - January 30 Optional day-trip to Carara National Park Guides Vernon and Frank offered an optional day trip to Carara National Park before the tour officially began and all tour participants took advantage of this special opportunity. As such, we are including the sightings from this day trip in the overall tour report. We departed the Hotel at 05:40 for the drive to the National Park. En route we stopped along the road to view a beautiful Turquoise-browed Motmot. -
Parallel Variation in North and Middle American Screech-Owls
MONOGRAPHS OF THE WESTERN FOUNDATION OF VERTEBRATE ZOOLOGY JULY 1967 PARALLEL VARIATION IN NORTH AND MIDDLE AMERICAN SCREECH-OWLS BY JOE T. MARSHALL, J MONOGRAPHS OF THE WESTERN FOUNDATION OF VERTEBRATE ZOOLOGY NO. 1 JULY 1967 PARALLEL VARIATION IN NORTH AND MIDDLE AMERICAN SCREECH-OWLS BY JOE T. MARSHALL, WESTERN FOUNDi,710' 1 OF VERTEBRATE ZOO! OGY 1100 GLENDON AVENUE • GRANITE 7-2001 LOS ANGELES, CALIFORNIA 90024 BOARD OF TRUSTEES ED N. HARRISON ...... PRESIDENT FRANCES F. ROBERTS . EXECUTIVE VICE PRESIDENT C. V. DUFF . VICE PRESIDENT J. C. VON BLOEKER, JR .. VICE PRESIDENT SIDNEY B. PEYTON SECRETARY BETTY T. HARRISON TREASURER MAURICE A. MACHRIS ....... ... .. TRUSTEE J. R. PEMBERTON ......... PRESIDENT EMERITUS WILLIAM J. SHEFFLER ..... VICE PRESIDENT EMERITUS JEAN T. DELACOUR ........ ... DIRECTOR EDITOR JACK C. VON BLOEKER, JR. A NON-PROFIT CORPORATION DEDICATED TO. THE STUDY OF ORNITHOLGY, OOLOGY, AND MAMMALOGY Date of Publication: 10 August 1967 Joe T. Marshall, Jr. Male Otus asio aikeni in its natural setting of velvet mesquite (Prosopis velutina). The compressed plumage and fierce expression are due to belligerence aroused from hearing his own song played on a tape recorder in his own territory. Photographed in the field in Arizona. PARALLEL VARIATION IN NORTH AND MIDDLE AMERICAN SCREECH-OWLS JOE T. MARSHALL, JR. My objective in this paper is to provide for the first time a delineation of species of North and Middle American Otus based on acquaintance with their biological traits in the field. Next I wish to show their racial convergence in concealing color patterns. Finally, I attempt to portray the dramatic geographic variation in those evanescent colors and patterns of fresh autumn plumage, in recently collected specimens (largely taken by myself). -
Tc & Forward & Owls-I-IX
USDA Forest Service 1997 General Technical Report NC-190 Biology and Conservation of Owls of the Northern Hemisphere Second International Symposium February 5-9, 1997 Winnipeg, Manitoba, Canada Editors: James R. Duncan, Zoologist, Manitoba Conservation Data Centre Wildlife Branch, Manitoba Department of Natural Resources Box 24, 200 Saulteaux Crescent Winnipeg, MB CANADA R3J 3W3 <[email protected]> David H. Johnson, Wildlife Ecologist Washington Department of Fish and Wildlife 600 Capitol Way North Olympia, WA, USA 98501-1091 <[email protected]> Thomas H. Nicholls, retired formerly Project Leader and Research Plant Pathologist and Wildlife Biologist USDA Forest Service, North Central Forest Experiment Station 1992 Folwell Avenue St. Paul, MN, USA 55108-6148 <[email protected]> I 2nd Owl Symposium SPONSORS: (Listing of all symposium and publication sponsors, e.g., those donating $$) 1987 International Owl Symposium Fund; Jack Israel Schrieber Memorial Trust c/o Zoological Society of Manitoba; Lady Grayl Fund; Manitoba Hydro; Manitoba Natural Resources; Manitoba Naturalists Society; Manitoba Critical Wildlife Habitat Program; Metro Propane Ltd.; Pine Falls Paper Company; Raptor Research Foundation; Raptor Education Group, Inc.; Raptor Research Center of Boise State University, Boise, Idaho; Repap Manitoba; Canadian Wildlife Service, Environment Canada; USDI Bureau of Land Management; USDI Fish and Wildlife Service; USDA Forest Service, including the North Central Forest Experiment Station; Washington Department of Fish and Wildlife; The Wildlife Society - Washington Chapter; Wildlife Habitat Canada; Robert Bateman; Lawrence Blus; Nancy Claflin; Richard Clark; James Duncan; Bob Gehlert; Marge Gibson; Mary Houston; Stuart Houston; Edgar Jones; Katherine McKeever; Robert Nero; Glenn Proudfoot; Catherine Rich; Spencer Sealy; Mark Sobchuk; Tom Sproat; Peter Stacey; and Catherine Thexton. -
About Owls By: AV
All About Owls By: AV 1 Contents 1. Say Hi To Owls_________________________ p. 3 2. Body Parts_____________________________ p. 4-5 3. Getting Hungry__________________________ p.6-7 4. So Many Owls__________________________ p.8-11 5. Where Are They_________________________ p. 12 6. Got To Go, Bye__________________________ p. 13 7. Quiz Zone______________________________ p. 14 8. About The Author________________________ p. 15 9. Glossary_______________________________ p. 16 10. References___________________________ p.17 2 Say Hi To Owls Swoosh! The great grey owl soares overhead seeking for some food. Then swoosh the owl spots a little mouse crawling through the grass and strikes at it. In this book I will teach you all about owls. If you don’t know what an owl is then this book will be good for you. In this book you will learn about their body parts, what they eat, and the types of owls. I hope you enjoy this book. 3 Body Parts Owls have way more body parts than you think. If you look to the right you will see a picture of all their body parts. But some of their most important body parts are their eyes witch help them see in the dark, their huge ears which help them hear very well, and their flexible necks. 4 Great Big Eyes Huge ears Owls have big eyes. For example, if you Owls have huge ears. Teacher fox says, open your mouth into an O shape that is the “if you lift up the feathers you can see the size of an owls eye. Owls can use those eyes back of their eyes through the ear.” That is to see in the dark. -
First Records of Koepcke's Screech-Owl Megascops Koepckeae
NOTA / NOTE First records of Koepcke’s Screech-Owl Megascops koepckeae (Aves: Strigidae) in Ecuador Leonardo Ordóñez-Delgado1,2*, Juan Freile3 1Universidad Técnica Particular de Loja, Departamento de Ciencias Biológicas, Laboratorio de Ecología Tropical y Servicios Ecosistémicos - EcoSs Lab, Loja, Ecuador. 2Programa de Doctorado en Conservación de Recursos Naturales, Escuela Internacional de Doctorado, Universidad Rey Juan Carlos, Madrid, España. 3Comité Ecuatoriano de Registros Ornitológicos, Pasaje El Moro E4–216 y Norberto Salazar, Tumbaco, Ecuador *Corresponding author: [email protected] Editado por/Edited by: Esteban A. Guevara Recibido/Received: 12 Septiembre 2018 Aceptado/Accepted: 9 Noviembre 2018 Publicado en línea/Published online: 25 Noviembre 2019 Primeros registros del Autillo de Koepcke Megascops koepckeae (Aves: Strigidae) en Ecuador Resumen El recientemente descrito Autillo de Koepcke Megascops koepckeae se había registrado, hasta hace poco, únicamente en el norte y centro de los Andes de Perú. Presentamos los primeros registros de M. koepckeae en Ecuador, provenientes de la ciudad de Loja. Estos registros amplían su área de distribución conocida en al menos 90 km al norte del registro más septentrional de Perú, y proporcionan nuevos elementos sobre la elección de hábitat de la especie y su distribución espacial en relación con el Autillo Peruano M. roboratus. Palabras clave: Andes, Autillo de Koepcke, distribución, Loja, registros, Strigidae. Abstract The recently described Koepcke’s Screech-Owl Megascops koepckeae was only known, until recently, from the northern and central Andes of Peru. We present the first records of M. koepckeae in Ecuador, from the city of Loja. Our records extend its known range by at least 90 km northwards from the northernmost record in Peru, and provide new insights into the species’ habitat selection and spatial distribution in relation to the Peruvian Screech-Owl M. -
OWLS and COYOTES
AT HOME WITH NATURE: eLearning Resource | Suggested for: general audiences, families OWLS and COYOTES The Eastern Coyote The Eastern coyote, common to the Greater Toronto Area, is a hybrid between the Western coyote and Eastern wolf. Adults typically weigh between 10–22 kg, but thick fur makes them appear bigger. They have grey and reddish-brown fur, lighter underparts, a pointed nose with a red-brown top, a grey patch between the eyes, and a bushy, black-tipped tail. Coyote ears are more triangular than a wolf’s. Coyotes are not pack animals, but a mother will stay with her young until they are about one year old. Coyotes communicate with a range of sounds including yaps, whines, barks, and howls. Habitat Eastern coyotes are very adaptable and can survive in both rural and urban habitats. They often build their dens in old woodchuck holes, which they expand to about 30 cm in diameter and about 3 m in depth. Although less common, coyotes also build dens in hollow trees. Diet What is on the menu for coyotes? Check off each food type. Squirrels Frogs Grasshoppers Dog kibble Berries Rats Humans Food compost Garden vegetables Snakes Small birds Deer If you selected everything, except for humans, you are correct! Coyotes are opportunistic feeders that consume a variety of foods including fallen fruit, seeds, crops, and where they can find it pet food and compost. However, their diet is comprised mainly of insects, reptiles, amphibians, and small mammals. Their natural rodent control is beneficial to city dwellers and farmers alike. Preying on small mammals does mean though that our pets are on the menu, so it is important to keep them on leash close to you. -
Owls.1. Newton, I. 2002. Population Limitation in Holarctic Owls. Pp. 3-29
Owls.1. Newton, I. 2002. Population limitation in Holarctic Owls. Pp. 3-29 in ‘Ecology and conservation of owls’, ed. I. Newton, R. Kavenagh, J. Olsen & I. Taylor. CSIRO Publishing, Collingwood, Australia. POPULATION LIMITATION IN HOLARCTIC OWLS IAN NEWTON Centre for Ecology and Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire PE28 2LS, United Kingdom. This paper presents an appraisal of research findings on the population dynamics, reproduction and survival of those Holarctic Owl species that feed on cyclically-fluctuating rodents or lagomorphs. In many regions, voles and lemmings fluctuate on an approximate 3–5 year cycle, but peaks occur in different years in different regions, whereas Snowshoe Hares Lepus americanus fluctuate on an approximate 10-year cycle, but peaks tend to be synchronised across the whole of boreal North America. Owls show two main responses to fluctuations in their prey supply. Resident species stay on their territories continuously, but turn to alternative prey when rodents (or lagomorphs) are scarce. They survive and breed less well in low than high rodent (or lagomorph) years. This produces a lag in response, so that years of high owl densities follow years of high prey densities (examples: Barn Owl Tyto alba, Tawny Owl Strix aluco, Ural Owl S. uralensis). In contrast, preyspecific nomadic species can breed in different areas in different years, wherever prey are plentiful. They thus respond more or less immediately by movement to change in prey-supply, so that their local densities can match the local food-supply at the time, with minimum lag (examples: Short-eared Owl: Asio flammeus, Long-eared Owl A. -
Nestling Development of the Tropical Screech-Owl (Megascops Choliba): a Successful Case Report from the Southwestern Amazon
ACTA AMAZONICA http://dx.doi.org/10.1590/1809-4392201700502 Nestling development of the tropical screech-owl (Megascops choliba): a successful case report from the southwestern Amazon Edson GUILHERME*, Izabele Rodrigues de SOUZA 1 Universidade Federal do Acre, Centro de Ciências Biológicas e da Natureza, Laboratório de Ornitologia. Campus Universitário, BR 364, Km 04, Distrito industrial, CEP 69920- 900, Rio Branco, Acre, Brasil * Corresponding author: [email protected] ABSTRACT This study reports a successful reproductive event in Megascops choliba in eastern Acre, northern Brazil. An active M. choliba nest was monitored from the hatching of the eggs to the departure of the nestlings. Once hatched, the nestlings were weighed every two days to verify their weight gain over time. The nestlings remained in the nest for 30 days. The pattern of weight gain was similar to that found in other birds, presenting a rapid increase over the first 15 days, followed by a drastic reduction in the mean growth rate during the second half of the development period. Our observations indicate that the breeding season of M. choliba in southwestern Amazonia is similar as that reported for the species in the northern hemisphere. These are the first data on this species from this region, and contribute to the understanding of its reproductive biology within its geographic range. KEYWORDS: birds, Strigidae, growth rate, nest, state of Acre, Brazil Desenvolvimento do ninhego em corujinha-do-mato (Megascops choliba): um relato de caso bem sucedido na Amazônia sul-ocidental RESUMO Este estudo refere-se a um caso bem sucedido de reprodução de Megascops choliba no leste do estado do Acre. -
Bird) Species List
Aves (Bird) Species List Higher Classification1 Kingdom: Animalia, Phyllum: Chordata, Class: Reptilia, Diapsida, Archosauria, Aves Order (O:) and Family (F:) English Name2 Scientific Name3 O: Tinamiformes (Tinamous) F: Tinamidae (Tinamous) Great Tinamou Tinamus major Highland Tinamou Nothocercus bonapartei O: Galliformes (Turkeys, Pheasants & Quail) F: Cracidae Black Guan Chamaepetes unicolor (Chachalacas, Guans & Curassows) Gray-headed Chachalaca Ortalis cinereiceps F: Odontophoridae (New World Quail) Black-breasted Wood-quail Odontophorus leucolaemus Buffy-crowned Wood-Partridge Dendrortyx leucophrys Marbled Wood-Quail Odontophorus gujanensis Spotted Wood-Quail Odontophorus guttatus O: Suliformes (Cormorants) F: Fregatidae (Frigatebirds) Magnificent Frigatebird Fregata magnificens O: Pelecaniformes (Pelicans, Tropicbirds & Allies) F: Ardeidae (Herons, Egrets & Bitterns) Cattle Egret Bubulcus ibis O: Charadriiformes (Sandpipers & Allies) F: Scolopacidae (Sandpipers) Spotted Sandpiper Actitis macularius O: Gruiformes (Cranes & Allies) F: Rallidae (Rails) Gray-Cowled Wood-Rail Aramides cajaneus O: Accipitriformes (Diurnal Birds of Prey) F: Cathartidae (Vultures & Condors) Black Vulture Coragyps atratus Turkey Vulture Cathartes aura F: Pandionidae (Osprey) Osprey Pandion haliaetus F: Accipitridae (Hawks, Eagles & Kites) Barred Hawk Morphnarchus princeps Broad-winged Hawk Buteo platypterus Double-toothed Kite Harpagus bidentatus Gray-headed Kite Leptodon cayanensis Northern Harrier Circus cyaneus Ornate Hawk-Eagle Spizaetus ornatus Red-tailed -
Trinidad's Birds & Butterflies
Trinidad’s Birds & Butterflies With Naturalist Journeys & Caligo Ventures November 7 – 14, 2018 866.900.1146 800.426.7781 520.558.1146 [email protected] www.naturalistjourneys.com or find us on Facebook at Naturalist Journeys, LLC Naturalist Journeys, LLC / Caligo Ventures PO Box 16545 Portal, AZ 85632 PH: 520.558.1146 / 800.426.7781 Fax 650.471.7667 naturalistjourneys.com / caligo.com [email protected] / [email protected] Naturalist Journeys and Caligo Ventures are pleased to announce our 2018 celebrity tour to the Asa Wright Nature Centre with author of Guide to the Birds of Honduras, Robert Gallardo. Join Robert for a fantastic week at the Centre and enjoy a fast-track study of butterfly identification, behavior, and ecology, complemented by the Centre’s top-rate birding. All participants will receive a laminated butterfly guide produced by Rainforest Publications in 2015. Enjoy world-famous birdwatching opportunities, and learn new skills discovering other winged gems — the butterflies. We plan outings to a wide variety of habitats, from montane forests to mangroves, and wetlands to working agricultural areas to find a wide variety of species. Robert shares his expertise through field time, skills, workshops, and presentations. Robert is currently working on a butterfly field guide and loves nothing more than exploring with a fine eye for detail. (Some butterflies are as tiny as your pinky nail!) With honed field skills and over two decades experience leading tours, Robert is an amazing person to spend time with. Many birders have turned to butterfly watching as a stunning enrichment to their field time. -
Brief Report Sex-Specific Diet Analysis of the Eurasian Eagle Owl in Finland
Ornis Fennica 91:195–200. 2014 Brief report Sex-specific diet analysis of the Eurasian Eagle Owl in Finland Heimo Mikkola* & Risto Tornberg H. Mikkola, Department of Biology, University of Eastern Finland, P.O.Box 1627, FI- 70211 Kuopio, Finland. * Corresponding author’s e-mail: [email protected] R. Tornberg, Department of Biology, P.O.Box 3000, FI-90014 University of Oulu, Fin- land Received 28 March 2014, accepted 17 June 2014 1. Introduction the smaller male that is mainly responsible for prey deliveries during the breeding season. Based on Birds of prey typically show reversed sexual size specimens found in good condition at the Zoologi- dimorphism (RSD), with females clearly larger cal museum of University of Oulu, Finland, fe- than males, for what purpose has aroused a pleth- male owls from Finland had an average weight of ora of hypothesis to explain it (see Krüger 2005). 2760 g (N = 50), while male weights averaged One of the earliest explanations has been avoid- 2200 g (N = 35). The RSD index of the Eagle Owls ance of competition between the mates (Temeles is 9.8 (calculated as in Amadon (1943) and Earhart 1985). Though avoidance of competition does not & Johnson (1970) by using the cube root of body explain the reversed nature of the sizes of the sexes mass to compare the indices of linear measure- it may be one mechanism to maintain it (Sunde et ments). This is the third highest value of all Euro- al. 2003, Krüger 2005). The Eurasian Eagle Owl pean owls (Mikkola 1982). It seems logical to hy- (Bubo bubo), hereafter termed Eagle Owl, is the pothesize that the heavier females may reduce in- largest owl in the world, a typical top-predator be- traspecific competition for food with males by tak- ing able to kill smaller birds of prey and owls ing larger prey than their smaller mates. -
Survey Protocol for the Great Grey Owl Within the Range of the Northwest Forest Plan
SURVEY PROTOCOL FOR THE GREAT GRAY OWL WITHIN THE RANGE OF THE NORTHWEST FOREST PLAN Version 3.0 January 12, 2004 Prepared for the USDA Forest Service and USDI Bureau of Land Management By Deborah L. Quintana-Coyer-Taxon Leader -USFS Richard P. Gerhardt- Taxon Expert-Sage Science Matthew D. Broyles-Team Member-BLM Jeffrey A. Dillon-Team Member-USFWS Cheryl A. Friesen-Team Member-USFS Steven A. Godwin -Team Member-BLM Shane D. Kamrath-Team Member-USFS And with editorial assistance from Kimberly L. Garvey-USFS Survey Protocol for the Great Grey Owl within the Range of the Northwest Forest Plan 1 Survey Protocol for the Great Grey Owl within the Range of the Northwest Forest Plan Table of Contents Page EXECUTIVE SUMMARY 5 I. TRIGGERS FOR SURVEY 7 Trigger Criteria 7 Activities that are not generally habitat-disturbing 7 Activities that are generally habitat-disturbing 7 II. SPECIES DESCRIPTION 8 III. ECOLOGY 9 Range 9 General Ecology 9 Ecological Differences 10 Diet 10 Breeding/Courtship 11 Habitat Use 11 Nest Structure 12 Nesting Habitat 12 Roosting Habitat 14 Foraging Habitat 14 Elevation Use 16 Wintering Habitat 16 Areas Where Pre-Disturbance Surveys are NOT Needed for a Reasonable 16 Assurance of Persistence IV. METHODS 17 Survey Period 17 Pre-Survey Planning 18 Calling Techniques 19 Recommended Equipment Specifications 19 Conducting Surveys 20 Follow-up Surveys 22 Requirements 23 Determining a Known Site 24 Determining Other Observations 24 StatusBaiting or “Mousing” 24 Data Management 25 Training/Qualifications 25 V. APPENDICES 27 Appendix