Download or read book Cerulean Warbler Status Assessment written by Paul B. Hamel and published by Createspace Independent Pub. This book was released on 2012-08-16 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cerulean warbler, Dendroica cerulea (Wilson), is a wood warbler in the Subfamily Parulinae of the Family Emberizidae, Order Passeriformes. No controversial or unsettled issues exist in the taxonomy of this bird. The numbers of cerulean warblers are declining at rates comparable to the most precipitous rates documented among North American birds by the cooperative Breeding Bird Survey. Recent evidence suggests that events on breeding, stopover, and wintering grounds are implicated in this decline. However, no detailed life history study of the species exists. This status assessment is an attempt to assemble what is known of the species into a form that will enable biologists in the U.S. Fish and Wildlife Service to make a decision on whether or not to propose listing of the species under the Endangered Species Act. The report will also help the Service and others establish priorities for monitoring; research; and habitat protection, restoration, and management that will conserve this species. Cerulean warbler is a small, neotropical migratory bird that weighs approximately 8-10 grams, and has relatively long, pointed wings and a short tail. All plumages have two white wing bars and white tail spots. Males have streaked backs in all plumages; females do not. Males in breeding plumage are blue above, white below, with a blueblack neck ring. Females in breeding plumage are bluish green above, white below washed with yellow, with a white or yellowish line over the eye. Young birds are similar to the adult females but greener. Cerulean warblers feed primarily on insects throughout the year. Open-cup nests are placed in the canopy of forest trees where the birds raise usually a single brood. Clutch size is usually 3-4 eggs. Adult and juvenile mortality rates are unknown. The longevity record is at least 6 years. Only 1 of 1399 banded individuals has been encountered later away from the original capture locality. Conventional wisdom about habitat for cerulean warblers is that the birds breed in large tracts of deciduous forest having large trees and an open understory. These tracts may be in upland or bottomland situations. Migratory and winter season habitats are poorly known. Cerulean warblers breed in eastern North America primarily in the Ohio and Mississippi River valleys. The range generally extends from the eastern Great Plains, north to Minnesota; east to Massachusetts; and south to North Carolina and Louisiana. During migration the birds pass through the southern U.S., across the Gulf of Mexico to the highlands of Central America, and on to South America. They winter in the lower elevations of the subtropical zone of the eastern slope of the Andes and other mountains in northern South America. Historical data on the occurrence and abundance of the species are sparse and do not permit estimation of total numbers. However, it is clear that this species was a conspicuous and abundant bird throughout the Ohio and Mississippi River valleys in the past century. Currently the birds are much less numerous in areas where formerly they were abundant. The North American Breeding Bird Survey suggests that, during the past 30 years, the population has declined at an average annual rate of approximately 4%. Summaries of the Breeding Bird Survey, Breeding Bird Census, Breeding Bird Atlas, conservation status, and other information pertinent to individual nations, states, and provinces are presented for each political division within the range of the species. Current numbers and distribution of the species are such that an adequate summary of occurrence by land ownership categories cannot be prepared, other than to state that the birds are found on public lands, industrial forest lands, and other private lands. One study found the birds more frequently on public than on other land ownerships.
Download or read book The Warblers of North America written by Frank Michler Chapman and published by . This book was released on 1907 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waiting for a Warbler written by Sneed B. Collard III and published by Tilbury House Publishers and Cadent Publishing. This book was released on 2021-02-02 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Short listed for the Green Earth book award In early April, as Owen and his sister search the hickories, oaks, and dogwoods for returning birds, a huge group of birds leaves the misty mountain slopes of the Yucatan peninsula for the 600-mile flight across the Gulf of Mexico to their summer nesting grounds. One of them is a Cerulean warbler. He will lose more than half his body weight even if the journey goes well. Aloft over the vast ocean, the birds encourage each other with squeaky chirps that say, “We are still alive. We can do this.” Owen’s family watches televised reports of a great storm over the Gulf of Mexico, fearing what it may mean for migrating songbirds. In alternating spreads, we wait and hope with Owen, then struggle through the storm with the warbler. This moving story with its hopeful ending appeals to us to preserve the things we love. The backmatter includes a North American bird migration map, birding information for kids, and guidance for how native plantings can transform yards into bird and wildlife habitat.
Download or read book Cerulean Warbler written by Paul B. Hamel and published by . This book was released on 2000 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cerulean Blues written by Katie Fallon and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cerulean Blues describes the plight of the cerulean warbler, a tiny migratory songbird, and its struggle to survive in ever-shrinking bands of suitable habitat. This elusive creature, a favorite among bird watchers and the fastest-declining warbler species in the United States, has lost 3 percent of its total population each year since 1966. This precipitous decline means that today there are 80 percent fewer ceruleans than 40 years ago, and their numbers continue to drop due to threats including deforestation, global warming, and an ecologically devastating practice -- mountaintop removal coal mining -- that affects not only the cerulean warbler but all residents of the Appalachian mountains, including humans.
Download or read book The Warblers of North America written by Frank Michler Chapman and published by . This book was released on 1907 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Field Guide to Warblers of North America written by Jon Lloyd Dunn and published by Houghton Mifflin Harcourt. This book was released on 1997 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes sixty species of North American warblers.
Download or read book Florida s Birds written by David S. Maehr and published by Rowman & Littlefield. This book was released on 2016-09-27 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: This illustrated guide to Florida's birds includes full-color illustrations and detailed descriptions of each species, and covers such topics as exotic and endangered species; bird conservation and study; finding, attracting, and feeding birds, bird problems, and the care of sick and injured birds.
Download or read book Habitat Selection and Reproductive Success in a Population of Cerulean Warblers in Southeastern Ontario written by Catherine J. Oliarnyk and published by Kemptville : Eastern Ontario Model Forest = Forét modèle de l'est de l'Ontario. This book was released on 1996 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study investigates the breeding biology, reproductive success and habitat use of a population of Cerulean Warblers (Dendroica cerulea), a poorly understood, threatened migrant songbird. I established study sites in three areas of mature deciduous forest in the Frontenac Axis region of Ontario: two in unmanaged forest, and the third in an area of selective cutting. Reproductive success was high over the two years of the study, with 20 of 27 pairs (74%) successfully fledging at least one young. Nest failure due to predation was relatively low (14.8%), and there were no known instances of brood parasitism by Brown-headed Cowbirds (Molothrus ater). High rates of success, associated with low rates of predation and brood parasitism, are likely attributable to the large area of contiguous forest in this region, which buffers the pressures of forest "edge effects."
Download or read book Distribution and Migration of North American Warblers written by Wells Woodbridge Cooke and published by . This book was released on 1904 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Warbler Guide written by Tom Stephenson and published by Princeton University Press. This book was released on 2013-07-08 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: A field guide that revolutionizes warbler identification Warblers are among the most challenging birds to identify. They exhibit an array of seasonal plumages and have distinctive yet oft-confused calls and songs. The Warbler Guide enables you to quickly identify any of the 56 species of warblers in the United States and Canada. This groundbreaking guide features more than 1,000 stunning color photos, extensive species accounts with multiple viewing angles, and an entirely new system of vocalization analysis that helps you distinguish songs and calls. The Warbler Guide revolutionizes birdwatching, making warbler identification easier than ever before. For more information, please see the author videos on the Princeton University Press website. Covers all 56 species of warblers in the United States and Canada Visual quick finders help you identify warblers from any angle Song and call finders make identification easy using a few simple questions Uses sonograms to teach a new system of song identification that makes it easier to understand and hear differences between similar species Detailed species accounts show multiple views with diagnostic points, direct comparisons of plumage and vocalizations with similar species, and complete aging and sexing descriptions New aids to identification include song mnemonics and icons for undertail pattern, color impression, habitat, and behavior Includes field exercises, flight shots, general identification strategies, and quizzes More information is available at www.TheWarblerGuide.com
Download or read book Conservation Tales written by Tom McConnell and published by . This book was released on 2017-02-28 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: Story of research and conservation of an endangered species of songbirds. Includes conservation and inquiry science activities for home and school, aligned with Next Generation Science Standards.
Download or read book Demography and Habitat Use of Cerulean Warblers on Breeding and Wintering Grounds written by Marja Henni Bakermans and published by . This book was released on 2008 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Because their annual movements span continents, Nearctic-Neotropical migratory birds represent one of the most challenging groups for which effective conservation strategies can be developed. Knowledge of the ecology and management of migratory bird communities comes primarily from studies conducted on the breeding grounds. However, recent work demonstrates that events that occur throughout the annual cycle may also contribute to population declines. The Cerulean Warbler (Dendroica cerulea), a Neotropical migrant exhibiting precipitous population declines, is an excellent example of a species that may be impacted by events on both the breeding and nonbreeding grounds. My dissertation research examined habitat use and population demography of Cerulean Warblers on breeding (southern Ohio) and wintering (Venezuelan Andes) grounds to evaluate potential factors that contribute to declines in Cerulean Warblers. During the breeding season, we surveyed Cerulean Warblers across 12 mature forest sites in southeast Ohio, 2004-2006. Research on the breeding grounds identified 1) how clearcutting impacted spatial distribution, density, and nesting success of Cerulean Warblers at multiple spatial scales (i.e., from local/edge to landscape), and 2) specific microhabitat and nest-patch characteristics selected by Cerulean Warblers. At each site, Ceruleans were intensively spot-mapped 8 times each year from May to July, adult behavior was used to locate and monitor nesting attempts, and nest, local, and landscape habitat characteristics were quantified. Results suggest that the presence of regenerating clearcuts did not influence density or nesting success of Cerulean Warblers in adjacent mature forest. Instead, local habitat features explained variation in warbler density and daily nest survival better than landscape-scale characteristics. Density and nesting success were positively associated with features typical of heterogeneous steady-state phase forests. In particular, nest plots had 14%, 24%, and 94% greater canopy openness, understory stems, and number of grapevines, respectively. On the nonbreeding grounds, my research examined 1) the suitability of shade coffee plantations and 2) foraging and habitat use by wintering migrant birds, with emphasis on Cerulean Warblers. This portion of the study was conducted in 3 primary forest sites and 3 shade coffee plantations on the western slope of the Cordillera de Mérida of the Andes Mountains. At each site, migrants were surveyed using distance-based line transects, mist-netted and banded, and observed to characterize habitat use and flocking behavior during November to February 2005/06 and 2006/07. During these two seasons, 29 individual Cerulean Warblers were color-banded and resighted to estimate apparent monthly survival, annual return rates, and apparent annual survival. Densities of migrants were 3-14x higher in shade coffee plantations than primary forest sites, even after accounting for differences in detectability. Apparent monthly survival of Cerulean Warblers was estimated at 97% and overwinter persistence was similarly high. Banding data also suggest that migrants using shade coffee improve their body condition over the winter. Adult Cerulean Warblers had 62% higher apparent annual survival than juvenile birds (0.73 versus 0.45). Apparent monthly migration survival for adults (0.97) was similar to values throughout the remainder of the annual cycle, though juveniles experienced up to 6x higher mortality during migratory periods.
Download or read book General Technical Report PSW written by and published by . This book was released on 2005 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Life Histories of North American birds Wood warblers written by Arthur Cleveland Bent and published by . This book was released on 1953 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spruce Mine No 1 Logan County written by and published by . This book was released on 2002 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Allegheny National Forest N F Proposed Land and Resource Management Plan written by and published by . This book was released on 2007 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
