Download or read book Status of the Peregrine Falcon Falco Peregrinus in South Greenland written by Knud Falk and published by . This book was released on 1985 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The History and Range Expansion of Peregrine Falcons in the Thule Area Northwest Greenland written by Andrew G. Gosler and published by Museum Tusculanum Press. This book was released on 2012-07-01 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the discovery and history of the most northern breeding population of Peregrine Falcons in the world, near Thule Air Base in northwest Greenland (75.9–77.6° N). Although the region was explored by scientific expeditions as early as 1818, Peregrines were not documented in the area until the 1930s. By the early 1990s the population had become well established, with a warming climate enabling Peregrines from further south to expand their breeding range northward. Here Burnham and his co-authors present their comprehensive findings on the biology and ecology of this population based on thirteen years of research from 1993 to 2005.
Download or read book The Peregrine Falcon in Greenland written by James T. Harris and published by . This book was released on 1981 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The peregrine falcon in Greenland written by James T. Harris and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology of the Peregrine and Gyrfalcon in Greenland written by William A. Burnham and published by Museum Tusculanum Press. This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A ten year study began in 1972 in West Greenland to investigate the breeding biology of the peregrine falcon. Data on nesting gyrfalcons were also collected. Thirty-four peregrine nesting sites were examined in the 6050 km2 inland study area near Søndre Strømfjord. Limited research also centered in Disko Bugt and Frederikshåb. Peregrines were found nesting predominantly on high, south-facing cliffs, which overlooked large areas. The mean minimum distance between peregrine eyries was 7.7 km for the inland area (1972 and 1973) and 55 km for the coast (1974). Approximately 60 percent of the inland nesting sites were occupied each year. A ten-year average production of 1.90 young per occupied site and 2.78 young per successful site was determined. Lapland longspurs, snow buntings, wheatears, and redpolls comprised 90 percent of the peregrines diet. Raven nests and prey availability may be the most significant factor affecting falcon density. Addled peregrine eggs, eggshell fragments, and peregrine prey species were collected. Whole eggs averaged 14.3 ppm wet weight (305 ppm lipid weight ) DDE, while eggshell measurements showed a 16 percent thinning compared with pre-1940 eggs from Greenland. Prey species carried low levels of DDE. The peregrine population appears to be at a near critical contamination level, and a small increase in DDE level could contribute to a population decline. No indication of a decline has been observed during the study, and the population appears stable. The project banded 185 peregrines, from which 8 recoveries occurred. The recoveries suggest peregrines migrate south to winter in South America.
Download or read book Peregrine Falcon Eastern Population Falco Peregrinus written by and published by . This book was released on 1991 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status Reports on Twelve Raptors written by David Lawrence Evans and published by . This book was released on 1982 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Depletion of fisheries due to acid rain may pose a future threat to bald eagle and osprey populations in some regions. Loss of essential habitat has affected declines in the caracara and western burrowing owl and the disappearance of the norther aplomado falcon from the southern United States. Most populations of the ferruginous hawk, marsh hawk, and prairie falcon appear stable; habitat loss is the most critical factor in population changes.
Download or read book The Peregrine Falcon written by Derek Ratcliffe and published by A&C Black. This book was released on 2010-06-30 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of The Peregrine Falcon was widely recognised as a classic of its kind, documenting not only the species' biology but also the sad tale of its decline due to the impact of pesticides. This extensively revised and enlarged second edition takes full account of important new developments in the story of this bird during the intervening 12 years. It reports one of the few notable successes in wildlife conservation: the full restoration of British and Irish Peregrine populations, and their appreciable recovery in other countries where numbers had also been greatly reduced by the impact of organochlorine pesticides. The pattern of increase in Britain has been extremely varied, from districts where numbers are now far higher than at any time in recorded history, to others where the bird is now at its lowest ebb. The examination of the reasons for these differences helps us to understand the most recent developments in the Peregrine saga. Particular attention has been paid to the recent major advances in our knowledge of Peregrine biology, such as its movements, population turnover, food and nesting habits. Many of the tables and figures have been revised and brought up to date so that this volume, like its predecessor, is once again by far the most detailed and readable reference on this most evocative of birds. Donald Watson's colour paintings, monochrome washes and line drawings, and the original photographs, illustrate the book as before. Cover illustration by Donald Watson.
Download or read book Wildlife Review written by and published by . This book was released on 1981 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status of the Peregrine Falcon Falco Peregrinus in British Columbia written by John Morton Cooper and published by . This book was released on 2004 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Peregrine Falcon (Falco peregrinus) is a rare raptor that occurs in many regions of British Columbia. There are three subspecies in the province, two that breed and one that occurs as a migrant. Peale's Peregrine Falcon (F.p. pealei) breeds, and is largely resident, in the harsh landscape and environment of the Queen Charlotte Islands, northern Vancouver Island, and islands and headlands of the central and north mainland coast. It is listed as a species of Special Concern by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). ... The American Peregrine Falcon, "anatum" subspecies (F.p. anatum), is a bird familiar to many as one of the icons of the environmental movement after the late 1960s. It is currently listed as Threatened by COSEWIC, after being downlisted from Endangered in 1998. The American Peregrine Falcon has a fascinating history in British Columbia. This subspecies formerly occurred in interior British Columbia and in much of the rest of interior North America south of the treeline. Populations across North America suffered catastrophic declines in the 1950s and 1960s. ... Remarkably, beginning in the 1970s, the American Peregrine Falcon seems to have colonized the Gulf Islands in Georgia Strait, where 11 occupied aeries were found during surveys in 2000, and has recolonized aeries in the Lower Mainland. It seems reasonable to conclude that pioneering individuals are now occupying a previously unoccupied region in British Columbia, having taken advantage of an abundant new prey species, the European Starling (Sturnusvulgaris), and available cliff nesting habitat. ... The Arctic Peregrine Falcon (F.p. tundrius) breeds in Arctic areas of North America and Greenland and occurs in British Columbia only as a migrant. Very few records exist for the province. It is designated as a species of Special Concern by COSEWIC."--Executive summary, p. vi-vii.
Download or read book Peregrine Falcon written by and published by . This book was released on 1994 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Peregrine Falcon written by and published by . This book was released on 1995 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status Report on the Peregrine Falcon Falco Peregrinus in Canada written by Marilyn Martin and published by . This book was released on 1990 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Final Environmental Impact Statement written by United States. Army. Corps of Engineers and published by . This book was released on 1974 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Breeding Biology and Ecology of the Peregrine Falcon Falco Peregrinus in West Greenland written by William A. Burnham and published by . This book was released on 1975 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Special Scientific Report written by and published by . This book was released on 1981 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Peregrine Falcon Populations written by Tom J. Cade and published by . This book was released on 1988 with total page 1030 pages. Available in PDF, EPUB and Kindle. Book excerpt:
