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 Allegheny National Forest N F County Line Fourmile Project written by and published by . This book was released on 2003 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Wing and a Prayer written by Anders Gyllenhaal and published by Simon and Schuster. This book was released on 2023-04-18 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: A captivating drama from the frontlines of the race to save birds set against the devastating loss of one third of the avian population. Three years ago, headlines delivered shocking news: nearly three billion birds in North America have vanished over the past fifty years. No species has been spared, from the most delicate jeweled hummingbirds to scrappy black crows, from a rainbow of warblers to common birds such as owls and sparrows. In a desperate race against time, scientists, conservationists, birders, wildlife officers, and philanthropists are scrambling to halt the collapse of species with bold, experimental, and sometimes risky rescue missions. High in the mountains of Hawaii, biologists are about to release clouds of laboratory-bred mosquitos in a last-ditch attempt to save Hawaii’s remaining native forest birds. In Central Florida, researchers have found a way to hatch Florida Grasshopper Sparrows in captivity to rebuild a species down to its last two dozen birds. In the Sierra Nevada Mountains, a team is using artificial intelligence to save the California Spotted Owl. In North Carolina, a scientist is experimenting with genomics borrowed from human medicine to bring the long-extinct Passenger Pigeon back to life. For the past year, veteran journalists Anders and Beverly Gyllenhaal traveled more than 25,000 miles across the Americas, chronicling costly experiments, contentious politics, and new technologies to save our beloved birds from the brink of extinction. Through this compelling drama, A Wing and a Prayer offers hope and an urgent call to action: Birds are dying at an unprecedented pace. But there are encouraging breakthroughs across the hemisphere and still time to change course, if we act quickly.
Download or read book Development of landscape level habitat suitability models for ten wildlife species in the central hardwoods region written by and published by . This book was released on 2007 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bird Conservation Implementation and Integration in the Americas written by and published by . This book was released on 2005 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report NRS written by and published by . This book was released on 2007 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Allegheny National Forest N F Lewis Run Project written by and published by . This book was released on 2002 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mark Twain National Forest N F Pineknot Woodland Restoration written by and published by . This book was released on 2003 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hoosier National Forest N F Proposed Land and Resource Management Plan written by and published by . This book was released on 2006 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monongahela National Forest N F Allegheny Wood Products Easement written by and published by . This book was released on 2010 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Science written by Michael L. McKinney and published by Jones & Bartlett Learning. This book was released on 2017-12 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Science: Systems and Solutions, Sixth Edition features updated data and additional tables with statistics throughout to lay the groundwork for a fair and apolitical foundational understanding of environmental science. Important Notice: The digital edition of this book is missing some of the images or content found in the physical edition.
Download or read book Proceedings of the Biennial Southern Silvicultural Research Conference written by and published by . This book was released on 2005 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 13th Biennial Southern Silvicultural Research Conference written by Kristina Frances Connor and published by . This book was released on 2006 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report SRS written by and published by . This book was released on 1995 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shawnee National Park N F Natural Area Trails Project written by and published by . This book was released on 2003 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alabama Wildlife Volume 5 written by Ralph Edward Mirarchi and published by University of Alabama Press. This book was released on 2017-06-06 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 5 offers an all-inclusive and complete update of the four previously published volumes.--
Download or read book Manassas National Battlefield Park Bypass Study from US Route 29 East of Park Boundary and VA Route 234 South of Park Boundary to US Route 29 West of Park Boundary and VA Route 234 North of Park Boundary Prince William and Fairfax Counties written by and published by . This book was released on 2005 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
