Let's Go Birding!
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Field Identification of Smaller Sandpipers Within the Genus <I
Field identification of smaller sandpipers within the genus C/dr/s Richard R. Veit and Lars Jonsson Paintings and line drawings by Lars Jonsson INTRODUCTION the hand, we recommend that the reader threeNearctic species, the Semipalmated refer to the speciesaccounts of Prateret Sandpiper (C. pusilia), the Western HESMALL Calidris sandpipers, affec- al. (1977) or Cramp and Simmons Sandpiper(C. mauri) andthe LeastSand- tionatelyreferred to as "peeps" in (1983). Our conclusionsin this paperare piper (C. minutilla), and four Palearctic North America, and as "stints" in Britain, basedupon our own extensivefield expe- species,the primarilywestern Little Stint haveprovided notoriously thorny identi- rience,which, betweenus, includesfirst- (C. minuta), the easternRufous-necked ficationproblems for many years. The hand familiarity with all sevenspecies. Stint (C. ruficollis), the eastern Long- first comprehensiveefforts to elucidate We also examined specimensin the toed Stint (C. subminuta)and the wide- thepicture were two paperspublished in AmericanMuseum of Natural History, spread Temminck's Stint (C. tem- Brtttsh Birds (Wallace 1974, 1979) in Museumof ComparativeZoology, Los minckii).Four of thesespecies, pusilla, whichthe problem was approached from Angeles County Museum, San Diego mauri, minuta and ruficollis, breed on the Britishperspective of distinguishing Natural History Museum, Louisiana arctictundra and are found during migra- vagrant Nearctic or eastern Palearctic State UniversityMuseum of Zoology, tion in flocksof up to thousandsof -
A Thesis Entitled Nocturnal Bird Call Recognition System for Wind Farm
A Thesis entitled Nocturnal Bird Call Recognition System for Wind Farm Applications by Selin A. Bastas Submitted to the Graduate Faculty as partial fulfillment of the requirements for the Master of Science Degree in Electrical Engineering _______________________________________ Dr. Mohsin M. Jamali, Committee Chair _______________________________________ Dr. Junghwan Kim, Committee Member _______________________________________ Dr. Sonmez Sahutoglu, Committee Member _______________________________________ Dr. Patricia R. Komuniecki, Dean College of Graduate Studies The University of Toledo December 2011 Copyright 2011, Selin A. Bastas. This document is copyrighted material. Under copyright law, no parts of this document may be reproduced without the expressed permission of the author. An Abstract of Nocturnal Bird Call Recognition System for Wind Farm Applications by Selin A. Bastas Submitted to the Graduate Faculty as partial fulfillment of the requirements for the Master of Science Degree in Electrical Engineering The University of Toledo December 2011 Interaction of birds with wind turbines has become an important public policy issue. Acoustic monitoring of birds in the vicinity of wind turbines can address this important public policy issue. The identification of nocturnal bird flight calls is also important for various applications such as ornithological studies and acoustic monitoring to prevent the negative effects of wind farms, human made structures and devices on birds. Wind turbines may have negative impact on bird population. Therefore, the development of an acoustic monitoring system is critical for the study of bird behavior. This work can be employed by wildlife biologist for developing mitigation techniques for both on- shore/off-shore wind farm applications and to address bird strike issues at airports. -
Common Caribbean Shorebirds: ID Guide
Common Caribbean Shorebirds: ID Guide Large Medium Small 14”-18” 35 - 46 cm 8.5”-12” 22 - 31 cm 6”- 8” 15 - 20 cm Large Shorebirds Medium Shorebirds Small Shorebirds Whimbrel 17.5” 44.5 cm Lesser Yellowlegs 9.5” 24 cm Wilson’s Plover 7.75” 19.5 cm Spotted Sandpiper 7.5” 19 cm American Oystercatcher 17.5” 44.5 cm Black-bellied Plover 11.5” 29 cm Sanderling 7.75” 19.5 cm Western Sandpiper 6.5” 16.5 cm Willet 15” 38 cm Short-billed Dowitcher 11” 28 cm White-rumped Sandpiper 6” 15 cm Greater Yellowlegs 14” 35.5 cm Ruddy Turnstone 9.5” 24 cm Semipalmated Sandpiper 6.25” 16 cm 6.25” 16 cm American Avocet* 18” 46 cm Red Knot 10.5” 26.5 cm Snowy Plover Least Sandpiper 6” 15 cm 14” 35.5 cm 8.5” 21.5 cm Semipalmated Plover Black-necked Stilt* Pectoral Sandpiper 7.25” 18.5 cm Killdeer* 10.5” 26.5 cm Piping Plover 7.25” 18.5 cm Stilt Sandpiper* 8.5” 21.5 cm Lesser Yellowlegs & Ruddy Turnstone: Brad Winn; Red Knot: Anthony Levesque; Pectoral Sandpiper & *not pictured Solitary Sandpiper* 8.5” 21.5 cm White-rumped Sandpiper: Nick Dorian; All other photos: Walker Golder Clues to help identify shorebirds Size & Shape Bill Length & Shape Foraging Behavior Size Length Sandpipers How big is it compared to other birds? Peeps (Semipalmated, Western, Least) Walk or run with the head down, picking and probing Spotted Sandpiper Short Medium As long Longer as head than head Bobs tail up and down when walking Plovers, Turnstone or standing Small Medium Large Sandpipers White-rumped Sandpiper Tail tips up while probing Yellowlegs Overall Body Shape Stilt Sandpiper Whimbrel, Oystercatcher, Probes mud like “oil derrick,” Willet, rear end tips up Dowitcher, Curvature Plovers Stilt, Avocet Run & stop, pick, hiccup, run & stop Elongate Compact Yellowlegs Specific Body Parts Stroll and pick Bill & leg color Straight Upturned Dowitchers Eye size Plovers = larger, sandpipers = smaller Tip slightly Probe mud with “sewing machine” Leg & neck length downcurved Downcurved bill, body stays horizontal . -
Draft Version Target Shorebird Species List
Draft Version Target Shorebird Species List The target species list (species to be surveyed) should not change over the course of the study, therefore determining the target species list is an important project design task. Because waterbirds, including shorebirds, can occur in very high numbers in a census area, it is often not possible to count all species without compromising the quality of the survey data. For the basic shorebird census program (protocol 1), we recommend counting all shorebirds (sub-Order Charadrii), all raptors (hawks, falcons, owls, etc.), Common Ravens, and American Crows. This list of species is available on our field data forms, which can be downloaded from this site, and as a drop-down list on our online data entry form. If a very rare species occurs on a shorebird area survey, the species will need to be submitted with good documentation as a narrative note with the survey data. Project goals that could preclude counting all species include surveys designed to search for color-marked birds or post- breeding season counts of age-classed bird to obtain age ratios for a species. When conducting a census, you should identify as many of the shorebirds as possible to species; sometimes, however, this is not possible. For example, dowitchers often cannot be separated under censuses conditions, and at a distance or under poor lighting, it may not be possible to distinguish some species such as small Calidris sandpipers. We have provided codes for species combinations that commonly are reported on censuses. Combined codes are still species-specific and you should use the code that provides as much information as possible about the potential species combination you designate. -
The Kavirondo Escarpment: a Previously Unrecognized Site of High Conservation Value in Western Kenya
Scopus 33: 64-69 January 2014 The Kavirondo Escarpment: a previously unrecognized site of high conservation value in Western Kenya James Bradley and David Bradley Summary In western Kenya, extant woodland habitats and their representative bird species are increasingly scarce outside of protected areas. With the assistance of satellite imagery we located several minimally impacted ecosystems on the Kavirondo Escarpment (0°1.7’ S, 34°56.5’ E), which we then visited to examine the vegetation communities and investigate the avifauna. Despite only a limited effort there, we report several new atlas square occurrences, presence of the local and poorly known Rock Cisticola Cisticola emini and a significant range extension for the Stone Partridge Ptilopachus petrosus. Our short visits indicate high avian species richness is associated with the escarpment and we suggest comprehensive biodiversity surveys here are warranted. Introduction The Kavirondo Escarpment in central-west Kenya is a significant geologic and topographic feature. It straddles the equator, extending over 45 km from east to west, and comprises the northern fault line escarpment of the Kavirondo Rift Valley (Baker et al. 1972). Immediately to the south lie the lowlands of the Lake Victoria Basin and Nyando River Valley, and to the north, the high plateau of the western Kenya highlands (Fig. 1). The escarpment slopes range in elevation from 1200–1700 m at the western end to 1500–2000 m in the east, where it gradually merges with the Nandi Hills. Numerous permanent and seasonal drainages on the escarpment greatly increase the extent of land surface and variation in slope gradients, as well as the richness of vegetation communities. -
Biogeographical Profiles of Shorebird Migration in Midcontinental North America
U.S. Geological Survey Biological Resources Division Technical Report Series Information and Biological Science Reports ISSN 1081-292X Technology Reports ISSN 1081-2911 Papers published in this series record the significant find These reports are intended for the publication of book ings resulting from USGS/BRD-sponsored and cospon length-monographs; synthesis documents; compilations sored research programs. They may include extensive data of conference and workshop papers; important planning or theoretical analyses. These papers are the in-house coun and reference materials such as strategic plans, standard terpart to peer-reviewed journal articles, but with less strin operating procedures, protocols, handbooks, and manu gent restrictions on length, tables, or raw data, for example. als; and data compilations such as tables and bibliogra We encourage authors to publish their fmdings in the most phies. Papers in this series are held to the same peer-review appropriate journal possible. However, the Biological Sci and high quality standards as their journal counterparts. ence Reports represent an outlet in which BRD authors may publish papers that are difficult to publish elsewhere due to the formatting and length restrictions of journals. At the same time, papers in this series are held to the same peer-review and high quality standards as their journal counterparts. To purchase this report, contact the National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161 (call toll free 1-800-553-684 7), or the Defense Technical Infonnation Center, 8725 Kingman Rd., Suite 0944, Fort Belvoir, VA 22060-6218. Biogeographical files o Shorebird Migration · Midcontinental Biological Science USGS/BRD/BSR--2000-0003 December 1 By Susan K. -
List of Shorebird Profiles
List of Shorebird Profiles Pacific Central Atlantic Species Page Flyway Flyway Flyway American Oystercatcher (Haematopus palliatus) •513 American Avocet (Recurvirostra americana) •••499 Black-bellied Plover (Pluvialis squatarola) •488 Black-necked Stilt (Himantopus mexicanus) •••501 Black Oystercatcher (Haematopus bachmani)•490 Buff-breasted Sandpiper (Tryngites subruficollis) •511 Dowitcher (Limnodromus spp.)•••485 Dunlin (Calidris alpina)•••483 Hudsonian Godwit (Limosa haemestica)••475 Killdeer (Charadrius vociferus)•••492 Long-billed Curlew (Numenius americanus) ••503 Marbled Godwit (Limosa fedoa)••505 Pacific Golden-Plover (Pluvialis fulva) •497 Red Knot (Calidris canutus rufa)••473 Ruddy Turnstone (Arenaria interpres)•••479 Sanderling (Calidris alba)•••477 Snowy Plover (Charadrius alexandrinus)••494 Spotted Sandpiper (Actitis macularia)•••507 Upland Sandpiper (Bartramia longicauda)•509 Western Sandpiper (Calidris mauri) •••481 Wilson’s Phalarope (Phalaropus tricolor) ••515 All illustrations in these profiles are copyrighted © George C. West, and used with permission. To view his work go to http://www.birchwoodstudio.com. S H O R E B I R D S M 472 I Explore the World with Shorebirds! S A T R ER G S RO CHOOLS P Red Knot (Calidris canutus) Description The Red Knot is a chunky, medium sized shorebird that measures about 10 inches from bill to tail. When in its breeding plumage, the edges of its head and the underside of its neck and belly are orangish. The bird’s upper body is streaked a dark brown. It has a brownish gray tail and yellow green legs and feet. In the winter, the Red Knot carries a plain, grayish plumage that has very few distinctive features. Call Its call is a low, two-note whistle that sometimes includes a churring “knot” sound that is what inspired its name. -
Directional Embedding Based Semi-Supervised Framework for Bird Vocalization Segmentation ⇑ Anshul Thakur , Padmanabhan Rajan
Applied Acoustics 151 (2019) 73–86 Contents lists available at ScienceDirect Applied Acoustics journal homepage: www.elsevier.com/locate/apacoust Directional embedding based semi-supervised framework for bird vocalization segmentation ⇑ Anshul Thakur , Padmanabhan Rajan School of Computing and Electrical Engineering, Indian Institute of Technology Mandi, Himachal Pradesh, India article info abstract Article history: This paper proposes a data-efficient, semi-supervised, two-pass framework for segmenting bird vocaliza- Received 16 October 2018 tions. The framework utilizes a binary classification model to categorize frames of an input audio record- Accepted 23 February 2019 ing into the background or bird vocalization. The first pass of the framework automatically generates training labels from the input recording itself, while model training and classification is done during the second pass. The proposed framework utilizes a reference directional model for obtaining a feature Keywords: representation called directional embeddings (DE). This reference directional model acts as an acoustic Bird vocalization segmentation model for bird vocalizations and is obtained using the mixtures of Von-Mises Fisher distribution Bioacoustics (moVMF). The proposed DE space only contains information about bird vocalizations, while no informa- Directional embedding tion about the background disturbances is reflected. The framework employs supervised information only for obtaining the reference directional model and avoids the background modeling. Hence, it can be regarded as semi-supervised in nature. The proposed framework is tested on approximately 79,000 vocalizations of seven different bird species. The performance of the framework is also analyzed in the presence of noise at different SNRs. Experimental results convey that the proposed framework performs better than the existing bird vocalization segmentation methods. -
Pinecrest Golf Course
Pinecrest Golf Course Birds on the Course In North America the Red-tailed Hawk is one of three species colloquially known as the “chicken hawk” or "hen hawk" even though chickens are not a major part of their diet. They were given this name in earlier times, when free-ranging chickens were preyed upon by first-year juveniles. They are also called buzzard hawks or red hawks. Red-tailed Hawks are easily recognized by their brick-red colored tails, from which its common name was derived. In the wild, they are expected to live for 10 -21 years. They reach reproductive maturity when they are about 3 years old. The Red-tailed Hawks is a bird of prey found in North and Central America, and in the West Indies. Throughout their range, they typically live in forests near open country or - depending on their range - in swamps, taigas and deserts. This species is legally protected in Canada, Mexico and the United States by the international Migratory Bird Treaty Act. In the United States, they are also protected by state, provincial and federal bird protection laws, making it illegal to keep hawks (without a permit) in captivity, or to Red-Tailed Hawk hunt them; disturb nests or eggs; even collecting their feathers is against the law. Red-Shouldered Hawk The Red-shouldered Sharp- Hawk is a medium-sized Hawk. A common Shinned forest-dwelling hawk of the East and California, Hawk the Red-shouldered Hawk favors woodlands near water. It is perhaps The sharp-shinned hawk is small with blue-gray upper parts and rufous bars on white the most vocal under parts. -
Rangewide Patterns of Migratory Connectivity in the Western
Journal of Avian Biology 43: 155–167, 2012 doi: 10.1111/j.1600-048X.2012.05573.x © 2012 Th e Authors. Journal of Avian Biology © 2012 Nordic Society Oikos Subject Editor: Th eunis Piersma. Accepted 16 January 2012 Range-wide patterns of migratory connectivity in the western sandpiper Calidris mauri Samantha E. Franks , D. Ryan Norris , T. Kurt Kyser , Guillermo Fern á ndez , Birgit Schwarz , Roberto Carmona , Mark A. Colwell , Jorge Correa Sandoval , Alexey Dondua , H. River Gates , Ben Haase , David J. Hodkinson , Ariam Jim é nez , Richard B. Lanctot , Brent Ortego , Brett K. Sandercock , Felicia Sanders , John Y. Takekawa , Nils Warnock, Ron C. Ydenberg and David B. Lank S. E. Franks ([email protected]), B. Schwarz, A. Jiménez, R. C. Ydenberg and D. B. Lank, Centre for Wildlife Ecology, Dept of Biological Sciences, Simon Fraser Univ., Burnaby, BC V5A 1S6, Canada. AJ also at: Facultad de Biología, Univ. de La Habana, Havana 10400, Cuba . – D. R. Norris, Dept of Integrative Biology, Univ. of Guelph , Guelph, ON N1G 2W1, Canada. – T. K. Kyser, Queen ’ s Facility for Isotope Research, Dept of Geological Sciences and Geological Engineering, Queen ’ s Univ., Kingston, ON K7L 3N6, Canada. – G. Fernández, Unidad Acad é mica Mazatl á n, Inst. de Ciencias del Mar y Limnolog í a, Univ. Nacional Aut ó noma de M é xico, Mazatl á n, Sinaloa 82040, M é xico. – R. Carmona, Depto de Biolog í a Marina, Univ. Aut ó noma de Baja California Sur, La Paz, Baja California Sur 23081, M é xico. – M. A. Colwell, Dept of Wildlife, Humboldt State Univ., Arcata, CA 95521, USA . -
Examining Trends in Bird Populations Over 10 Years of Data from a Local Banding Station in the BC Lower Mainland
RES 500C - Vancouver Avian Research Centre (VARC) Examining trends in bird populations over 10 years of data from a local banding station in the BC Lower Mainland Authored by: Amy Liu, Carla Di Filippo, Erin Ryan April 2020 Table of contents ABSTRACT 2 RESEARCH REPORT 2 Introduction 2 Methods 4 Study area and data collection 4 Dataset management 5 Statistical Analysis 6 Results 8 Changes in local avian community through time 8 Changes in capture rates of individual species through time 11 Patterns associated with ecological guilds and their categories. 13 Discussion 16 Changes in local avian community through time 16 Changes in individual species through time 16 Trends associated with ecological guilds and their categories 19 Limitations and future research 20 Conclusion 21 SCIENCE COMMUNICATIONS 22 Education presentation 22 Social media 22 Facebook 22 Instagram 24 Twitter 25 GENERAL COMMUNICATIONS 26 2019 Annual report sample 26 Branded Powerpoint templates 27 Social media 27 Facebook 27 Instagram 28 Twitter 29 Target demographics 29 LIST OF APPENDICES 31 REFERENCES 32 1 ABSTRACT Bird monitoring programs provide the foundational data for programs that study and conserve birds. More than ever, with the uncertainty of climate change and increasing human impacts, research and monitoring to quantify species abundance are essential for our understanding of changing avian communities to guide successful conservation and management actions. This project examined 11 years (2009 - 2019) of bird banding data from a community banding station in Coquitlam, BC, Canada. The research approached three main questions: 1) Has the avian community changed over these years? 2) How have capture frequencies of individual species changed over time? 3) Can ecological factors explain the changes observed in the community and species of interest? Here, we have highlighted patterns in local abundance over time in the avian community, demonstrated case examples of decline and recovery in local species, and presented possible ecological factors that could be influencing these patterns. -
Field Checklist (PDF)
Surf Scoter Marbled Godwit OWLS (Strigidae) Common Raven White-winged Scoter Ruddy Turnstone Eastern Screech Owl CHICKADEES (Paridae) Common Goldeneye Red Knot Great Horned Owl Black-capped Chickadee Barrow’s Goldeneye Sanderling Snowy Owl Boreal Chickadee Bufflehead Semipalmated Sandpiper Northern Hawk-Owl Tufted Titmouse Hooded Merganser Western Sandpiper Barred Owl NUTHATCHES (Sittidae) Common Merganser Least Sandpiper Great Gray Owl Red-breasted Nuthatch Red-breasted Merganser White-rumped Sandpiper Long-eared Owl White-breasted Nuthatch Ruddy Duck Baird’s Sandpiper Short-eared Owl CREEPERS (Certhiidae) VULTURES (Cathartidae) Pectoral Sandpiper Northern Saw-Whet Owl Brown Creeper Turkey Vulture Purple Sandpiper NIGHTJARS (Caprimulgidae) WRENS (Troglodytidae) HAWKS & EAGLES (Accipitridae) Dunlin Common Nighthawk Carolina Wren Osprey Stilt Sandpiper Whip-poor-will House Wren Bald Eagle Buff-breasted Sandpiper SWIFTS (Apodidae) Winter Wren Northern Harrier Ruff Chimney Swift Marsh Wren Sharp-shinned Hawk Short-billed Dowitcher HUMMINGBIRDS (Trochilidae) THRUSHES (Muscicapidae) Cooper’s Hawk Wilson’s Snipe Ruby-throated Hummingbird Golden-crowned Kinglet Northern Goshawk American Woodcock KINGFISHERS (Alcedinidae) Ruby-crowned Kinglet Red-shouldered Hawk Wilson’s Phalarope Belted Kingfisher Blue-gray Gnatcatcher Broad-winged Hawk Red-necked Phalarope WOODPECKERS (Picidae) Eastern Bluebird Red-tailed Hawk Red Phalarope Red-headed Woodpecker Veery Rough-legged Hawk GULLS & TERNS (Laridae) Yellow-bellied Sapsucker Gray-cheeked Thrush Golden