Poisoning Our Wildlife
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Winged Undertakers Digest the Deceased STORY and PHOTOS by LOWELL WASHBURN
nderrated and nappreciated Winged Undertakers Digest the Deceased STORY AND PHOTOS BY LOWELL WASHBURN 28 Iowa outdoors • JULY / AUGUST 2008 Although no one can for sure say why, turkey vultures have become increasingly common during the past two decades. Often referred to as “TVs” by birding enthusiasts, turkey vultures derive their name from the featherless, red heads of adults. And there’s no denying that, at least from a distance, a roosted vulture does somewhat resemble a male wild turkey. There’s good reason for the vulture’s distinctive, though ugly, bare head. As an avid consumer of carrion, TVs routinely forage in some pretty nasty places. The complete lack of head and neck feathers aids in maintaining cleanliness. Contrary to popular belief, vultures are among the cleanest of birds, spending up to four hours per day bathing and preening—more time than is documented for any other Iowa bird. WWW.IOWADNR.GOV 29 “It’s a dirty job, but someone has to do it.” t’s a dirty job, but someone has to do it.” than a bit disgusting. But for hungry vultures, the opportunity We’ve all heard that line a thousand times. represented nothing less than a four-star banquet—an asphalt But for me, the well-worn phrase gained new version of a carrion eater’s 21 Club of New York fame. “ meaning as I paused to watch members of a local After slowing and pulling aside to observe, it quickly Ihighway cleanup crew doing their dirty job. became apparent this bird show was not designed The crew was a gathering of turkey vultures, and for anyone with a queasy stomach. -
Turkey Vulture AKA: Turkey Buzzard, Buzzard, Vulture, Carrion Crow, Carrion Buzzard, Etc
Turkey Vulture AKA: Turkey Buzzard, Buzzard, Vulture, Carrion Crow, Carrion Buzzard, etc. Scientific Classification: Animalia, Chordata, Aves, Incertae sedis (disputed), Cathartidae; Cathartes; C. aura. Bird Size & Markings: Adult Turkey Vultures can be 32” long, stand 30” high and have 6 foot wingspans. Males and females have brownish-black body plum- age, silvery-gray flight feathers, bare red heads and a short yellow hooked bill. Turkey Vultures have very limited vocalization; it can only hiss or grunt. Habitat: The Turkey Vulture is the most abundant vulture in the Americas. It is commonly found in open and semi-open areas throughout the Americas from southern Canada to Cape Horn. It is a permanent resident in southern US States, though northern birds may migrate as far as South America. It prefers to roost on tall dead trees or high bare cliffs. It will roost on man-made structures such as water towers, skyscrapers, billboards and other structures of sufficient height. Nesting/Dens: There is little or no construction of a nest; eggs are laid on bare surfaces in protected locations such as a cliff, cave, burrow or inside a hollow A Turkey Vulture’s primary method of defence tree. They lay 1 or 2 eggs for each brood. Chicks fledge 9 to 10 weeks after hatch- is the projection vomiting of semi-digested car- ing. Family groups stay together until fall. rion. This deters most attackers (No doubt!). Food: Turkey Vultures prefer to feed on fresh carrion ranging in size from small mammals and dead fish to dead cattle and other grazers. They prefer fresh car- rion and avoid rotting carcasses. -
COYOTES Animal Damage Control Lakewood, Colorado 80228
Jeffrey S. Green Assistant Regional Director USDA-APHIS- COYOTES Animal Damage Control Lakewood, Colorado 80228 F. Robert Henderson Extension Specialist Animal Damage Control Kansas State University Manhattan, Kansas 66506-1600 Mark D. Collinge State Director USDA-APHIS- Animal Damage Control Boise, Idaho 83705 Fig. 1. Coyote, Canis latrans Damage Prevention and Shed lambing, kidding, and calving Toxicants usually reduce coyote predation. Control Methods M-44 ejector devices for use with Remove carrion to help limit coyote sodium cyanide-loaded plastic Exclusion populations. capsules. They are most effective Produce livestock in confinement. Frightening Agents and during cold weather (fall to spring). Repellents Herd livestock into pens at night. Livestock protection collars (LPC) Guarding dogs: Some dogs have containing Compound 1080 Exclusion fences (net-wire and/or (sodium monofluoroacetate) are electric), properly constructed and significantly reduced coyote predation. registered for use only in certain maintained, can aid significantly in states. reducing predation. Donkeys and llamas: Some are Fumigants Cultural Methods and aggressive toward canines and have Habitat Modification reduced coyote predation. Gas cartridges are registered as a burrow (den) fumigant. Select pastures that have a lower Sonic and visual repellents: Strobe incidence of predation to reduce lights, sirens, propane cannons, and Trapping exposure of livestock to predation. others have reduced predation on both sheep and calves. Leghold traps (Nos. 3 and 4) are Herding of livestock generally reduces effective and are the most versatile Chemical odor and taste repellents: predation due to human presence control tool. during the herding period. None have shown sufficient effectiveness to be registered for Snares are effective where coyotes pass Change lambing, kidding, and calving use. -
California Condor (Gymnogyps Californianus) 5-Year Review
California Condor (Gymnogyps californianus) 5-Year Review: Summary and Evaluation U.S. Fish and Wildlife Service Pacific Southwest Region June 2013 Acknowledgement: The Service gratefully acknowledges the commitment and efforts of the California Condor Recovery Program partners for their many on-going contributions towards condor recovery. Our partners were instrumental both in ensuring that we used the best available science to craft our analyses and recommendations in this 5-year review and in providing individual feedback that was used to refine this document. Photo Credit: Unless otherwise indicated, all photos, charts, and graphs are products of the U.S. Fish and Wildlife Service Page | 2 5-YEAR REVIEW California condor (Gymnogyps californianus) I. GENERAL INFORMATION Purpose of 5-Year Reviews: The U.S. Fish and Wildlife Service (Service) is required by section 4(c)(2) of the Endangered Species Act of 1973, as amended (Act) to conduct a status review of each listed species at least once every 5 years. The purpose of a 5-year review is to evaluate whether or not the species’ status has changed since it was listed (or since the most recent 5-year review). Based on the 5- year review, we recommend whether the species should be removed from the Lists of Endangered and Threatened Wildlife, changed in status from endangered to threatened, or changed in status from threatened to endangered. Our original listing as endangered or threatened is based on the species’ status considering the five threat factors described in section 4(a)(1) of the Act. These same five factors are considered in any subsequent reclassification or delisting decisions. -
Common Raven (Corvus Corax) Max A
Common Raven (Corvus corax) Max A. Henschell Ketchikan, AK 5/20/2009 © Doug Leffler (Click to view a comparison of Atlas I to II) Jet black with a shaggy throat, highly varied extensive forest cover. Migration has been recorded at Whitefish Point and Brockway hoarse utterances and an affinity for carrion, the Mountain, though it is most evident only in the Common Raven is often associated with war spring (Binford 2006). The destination of these and death and thus, has earned a less than migrating birds is unclear. endearing place in the avian community. But its ability to problem-solve, count, and even play Historically, the Common Raven was found should earn the Common Raven the title of throughout southern Michigan, into Ohio, Most Intelligent Bird in Michigan. Not the black Indiana and Illinois. Forest clearing and bird you often see in towns of the Upper widespread shooting of Common Ravens led to Peninsula, that position is typically reserved for their extirpation in the three states directly south the smaller American Crow, the wedge-tailed of Michigan, as well as the withdrawal of the Common Raven patrols the treetops of unbroken species into the UP (McPeek and Adams 1994). forests, rolling in the wind and soaring with the eagles. With a Holarctic range, the Common During MBBA II, Common Ravens were found Raven, largest of all songbirds, is a familiar in just over 42% of townships in the state. sight throughout the northern hemisphere. However, due to habitat requirements, it was not evenly distributed throughout the state. The Distribution species was found in more than 80% of the The Common Raven is found throughout North townships in the UP, just over 50% of the America, but is absent in the Great Plains, the blocks in the NLP and in less than 1% of the southeast states and westwards into east Texas. -
Educator's Guide to Celebrating Pennsylvania Bald Eagles And
AN EDUCATOR’S GUIDE TO Celebrating Pennsylvania Bald Eagle and Elk Reintroductions Pennsylvania Game Commission: Managing wild birds, wild mammals and their habitats for current and future generaƟ ons. www.pgc.state.pa.us Additional Resources to Accompany this Guide Correlations to Pennsylvania State Education Standards, photographs enhancing these activities, and a digital copy of this document can be found on the Pennsylvania Game Commission’s website, ww.pgc.state.pa.us, under the Education section. Special Thanks To: Theresa Alberici, Dan Lynch, Cheryl Trewella, Doug Gross, Patti Barber, Dan Brauning, Jeremy Banfield, Tracy Graziano, Mark Anderson, Hal Korber, Gisele Klimovsky, Brittany Howell, and Lori Neely-Mitchell. Pennsylvania Game Commission: Managing wild birds, wild mammals and their habitats for current and future generations. www.pgc.state.pa.us. May 2014 1 2 Table of Contents Pennsylvania Bald Eagles 5 FAST FACTS: Bald Eagles. .5 Pennsylvania Bald Eagles film: Guiding Questions. 7 Bald eagle student activity sheets. 12 Toxic Connections. .15 Raptor Artistry. 19 Bald Eagle Wildlife Note. 27 Pennsylvania Elk 31 FAST FACTS: Elk. .31 Pennsylvania Elk film: Guiding Questions. 33 Elk student activity sheet. .39 A Time for Elk . 41 Elk Through the Seasons. 47 How Many Elk Can Live Here?. .53 Let’s Ruminate. 55 Elk Wildlife Note . 61 Wildlife Reintroduction 63 Vocabulary 69 Pennsylvania Game Commission: Managing wild birds, wild mammals and their habitats for current and future generations. www.pgc.state.pa.us. May 2014 3 4 GUIDING -
Arkansas Black Bears: Biology and Habits
Agriculture and Natural Resources FSA9086 Arkansas Black Bears: Biology and Habits Don White, Jr. Description James M. White Professor of Wildlife Ecology The American black bear (Ursus University of Arkansas- americanus) is a bulky and husky mammal native to Arkansas (Figure 1). Monticello Adults are about 50 to 75 inches long from nose to rump and measure 35 to Rebecca McPeake 48 inches at the shoulder when stand Associate Professor ing on all four feet. Black bears usually Extension Specialist appear taller at the hips than at the Wildlife shoulders. They can reach over 6 feet tall when standing erect. Male black Rick Eastridge bears are known to exceed 600 pounds. Black Bear Biologist In Arkansas, adult males typically Arkansas Game and Fish range from 130 to 300 pounds and adult females from 90 to 150 pounds. Commission Their weights vary considerably within a single year and even between years, depending on food abundance. American black bears occur in a variety of colors ranging from black to almost white. The black color phase is Figure 1. The American black bear is the virtually the only one found in the most abundant bear in North America. eastern U.S. Black bears may Photo by Hal Korber, Pennsylvania Game Commission occasionally have a white patch or “blaze” on the chest. Brown and Adult black bears have a long cinnamon-colored black bears become muzzle with a straight facial profile. increasingly common in the more The ears are medium-sized, rounded variable, drier and mountainous and erect. They have short, incon habitats in the western U.S. -
Texas Wildlife Identification Guide
TEXAS WILDLIFE IDENTIFICATION GUIDE A guide to game animals, game birds, furbearers and other wildlife of Texas. INTRODUCTION Texas game animals, game birds, furbearers and other wildlife are important for many reasons. They provide countless hours of viewing and recreational opportunities. They benefit the Texas economy through hunting and “nature tourism” such as birdwatching. Commercial businesses that provide birdseed, dry corn and native landscaping may be devoted solely to attracting many of the animals found in this book. Local hunting and trapping economies, guiding operations and hunting leases have prospered because of the abun- dance of these animals in Texas. The Texas Parks and Wildlife Department benefits because of hunting license sales, but it uses these funds to research, manage and protect all wildlife populations – not just game animals. Game animals provide humans with cultural, social, aesthetic and spiritual pleasures found in wildlife art, taxidermy and historical artifacts. Conservation organiza- tions dedicated to individual species such as quail, turkey and deer, have funded thousands of wildlife projects throughout North America, demonstrating the mystique game animals have on people. Animals referenced in this pocket guide exist because their habitat exists in Texas. Habitat is food, cover, water and space, all suitably arranged. They are part of a vast food chain or web that includes thousands more species of wildlife such as the insects, non-game animals, fish and i rare/endangered species. Active management of wild landscapes is the primary means to continue having abundant populations of wildlife in Texas. Preservation of rare and endangered habitat is one way of saving some species of wildlife such as the migratory whooping crane that makes Texas its home in the winter. -
Turkey Vulture Cathartes Aura
Turkey Vulture Cathartes aura Folk Name: Buzzard, Carrion Bird, Buzzut, Crookwinged Vulture Status: Resident Abundance: Fairly Common to Common Habitat: Forage almost anywhere. Nest in sheltered cavities in old outbuildings, forests, ledges. The Turkey Vulture is a permanent resident in the Carolina Piedmont. Individuals move about some during the year, and like the Black Vulture, numbers possibly increase in the fall when birds move down from the North. Our highest one-day counts were about 320 birds tallied on the Southern Lake Norman Christmas Bird Count in 1999 and almost 270 counted on the York CBC in 1995. In July 1891, The Maxton Union newspaper in Maxton, NC, proclaimed that Turkey Vultures could “smell food 40 miles away.” This was more than a bit of an exaggeration, like many newspaper accounts of the day. However, again throughout the region. both vultures rely upon their keen sight and their ultra- We have several historic nest records of note. Wildlife sensitive sense of smell to find dead animals. In fact, photographer Jack Dermid found a Turkey Vulture nest scientists determined the olfactory organ of the Turkey in Gaston County on May 4, 1940. The nest was “under a Vulture was the ninth largest of 108 species of birds large boulder on ground” and it held one egg. Elmer Brown studied, and in experiments relying only upon their sense found a Turkey Vulture nest in Davidson containing two of smell, this vulture was able to find concealed carcasses eggs on May 7, 1940. The eggs were placed in a cavity at within 2 days of death. -
Species and Climate Change
SPECIES AND CLIMATE CHANGE: More than just the Polar Bear © Brian Hutchinson J. The IUCN Red List of Threatened Species ™ Species and Climate Change: Koalas are experiencing malnutrition as Eucalyptus leaves More than Just the Polar Bear decline in nutrient richness. They highlight effects of elevated CO levels on plants and on the animals that rely The Polar Bear has come to symbolise the impacts of 2 on them for food. climate change on the natural world. But it is only one of a multitude of species affected, and many of these are also Beluga Whales are losing their refuges from humans well-known, much-loved and important to people. This as Arctic sea ice melts, and also face new competitors, report presents 10 new climate change flagship species, predators and diseases. In addition to melting sea ice chosen to represent the impact that climate change is impacts, they highlight climate change’s indirect effects of likely to have on land and in our oceans and rivers. worsening existing threats from people. We cover some of the existing and anticipated threats Climate change does not commit these species to to these 10 well-known species. They illustrate some of extinction. Species can usually adapt if conditions change the many and varied ways that climate change impacts sufficiently slowly. Worsening climate change effects are different regions of the world, from African deserts to the inevitable because of the lag-effects of the greenhouse polar ice-caps. We hope these species can help to share gasses that we’ve already emitted. But it is not too late. -
Dipteran Larvae Infestation of Leatherback Turtle
DIPTERAN LARVAE INFESTATION OF LEATHERBACK TURTLE (DERMOCHELYS CORIACEA) NESTS ON GANDOCA BEACH, COSTA RICA A Thesis Presented to The Faculty of Graduate Studies of The University of Guelph by SONIA GAUTREAU In partial fulfillment of requirements for the degree of Master of Science February, 2007 © Sonia Gautreau, 2007 ABSTRACT DIPTERAN LARVAE INFESTATION OF LEATHERBACK TURTLE (DERMOCHELYS CORIACEA) NESTS ON GANDOCA BEACH, COSTA RICA Sonia Gautreau Co-Advisor: Dr. Ronald J. Brooks University of Guelph, 2007 Co-Advisor: Dr. Steve A. Marshall We examined the ecological characteristics of dipteran larvae infesting Leatherback nests on Gandoca Beach, Costa Rica in 2005-2006. Fly infestation exceeded 75% of nests, but levels were much lower when evaluated as the percent of the clutch infested. Fly larvae seemed to act mostly as scavengers, but a few live hatchlings were attacked indicating that flies also act opportunistically as predators. Several dipteran species were recorded with the sarcophagid Eumacronychia sternalis being dominant. Back-calculations from the development timeframe for E. sternalis showed that infestation happened shortly after hatchling emergence, suggesting that flies are attracted to the nest because of emanating odours of decomposing material brought to the surface by emerging hatchlings. Sampling year, bacteria or fungus invasion, and the interaction between nest depth and the number of dead hatchlings best predicted the incidence of larvae within nests. Infestation levels in egg hatcheries were not higher, possibly because of protective baskets. Our results suggest that flies do not seriously threaten Leatherback turtle populations in Gandoca, but they can cause incidental mortality and measures should be taken to protect nests against larval infestation. -
Food Webs of Animals at the Utica Zoo
Food Webs of Animals at the Utica Zoo We have a number of animals at our zoo that are found in the northern deciduous habitat. In this lesson we will discuss how each of our animals fit into a food web in their natural environment. Our food web is divided into what each animal eats. They can be Carnivores (Meat eaters), Omnivores (eat both plants and animals) , Herbivores (plant based diet) and Decomposers. Here is a sample of a food web. Visit us at Http://www.Uticazoo.org/kazoo . Mission: Utica Zoo creates unique experiences and promotes public appreciation of wildlife through education, conservation and recreation. Below is a list of animals that can be found when visiting our zoo and how they fit into their food webs. Turtles ● Three-Toed Box Turtle (Vulnerable) – Eastern and Central United States ● Eastern Box Turtle (Vulnerable) – Eastern and Central United States ● Wood Turtle (Endangered; Special Concern in NYS) – Northeastern United States ● Spotted Turtle (Endangered) – Eastern United States and ● Common Snapping Turtle (Least Concern) – Everywhere East of the Rocky Mountains in the United States Turtle predators: The eggs and hatchlings of snapping turtles may be eaten by other large turtles, great blue herons, crows, raccoons, skunks, foxes, bullfrogs, water snakes, and large predatory fish, such as largemouth bass. However, once snapping turtles become larger, there are few animals that prey on them. Turtles are normally eaten by animals with powerful jaws and sharp teeth, like crocodiles, alligators, cougars, etc. ● Three-Toed Box Turtle (Vulnerable) – Eastern and Central United States Three-toed box turtles are omnivores, their diets varying with availability of food sources and the seasons.