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Bald Eagle Haliaetus Leucocephalus
Appendix A: Birds Bald Eagle Haliaetus leucocephalus Federal Listing N/A State Listing T Global Rank G4 State Rank S2 Regional Status Photo by Jason Lambert Justification (Reason for Concern in NH) Bald Eagle populations in the conterminous United States entered a severe population decline in the 1950s, largely a result of reproductive failure induced by biomagnification of the insecticide DDT (Buehler 2000). Some regional breeding populations, especially in eastern and southern states, became locally extirpated. This serious decline led to the designation of the bald eagle as Endangered under the Endangered Species Act. Following the banning of DDT and intensive reintroduction efforts, Bald Eagle populations gradually rebounded, and the species was removed from the federal endangered list in 2007. In the Northeast, recovery has been particularly strong since 2000. However, most states still consider Bald Eagle a SGCN due to historic extirpations and historic sensitivity to certain environmental stressors, particularly contaminants. Distribution Bald eagles currently occur and breed in all Lower 48 states and in Alaska. Based upon data provided by state agencies, from a population low of 417 breeding pairs in 1963 the U.S. Fish and Wildlife Service estimated that there were an estimated 1,500 breeding pairs in the contiguous 48 states in 1982 and an estimated 5,300 pairs in the same area in 1997 (derived from data in Buehler 2000), and nearly 9800 breeding pairs in the Lower 48 states in 2006. The USFWS estimated that there were 463 breeding pairs in the six New England states in 2006. The nationwide population has probably increased substantially since 2006, but more recently compiled information is not available from USFWS. -
Bald Eagle Haliaeetus Leucocephalus
Wyoming Species Account Bald Eagle Haliaeetus leucocephalus REGULATORY STATUS USFWS: Delisted; Migratory Bird USFS R2: Sensitive USFS R4: Sensitive Wyoming BLM: Sensitive State of Wyoming: Protected Bird CONSERVATION RANKS USFWS: Bird of Conservation Concern WGFD: NSS3 (Bb), Tier II WYNDD: G5, S4B/S5N Wyoming Contribution: LOW IUCN: Least Concern PIF Continental Concern Score: 9 STATUS AND RANK COMMENTS Bald Eagle (Haliaeetus leucocephalus) is provided international protection under the Federal Migratory Bird Treaty Act of 1918, as amended 1. In 1940, Bald Eagle was provided protection under the Bald and Golden Eagle Protection Act 2. In 1966, the southern subspecies was listed as federally endangered under the Endangered Species Preservation Act; the entire population in the contiguous United States was listed as endangered in 1978 under the 1973 Endangered Species Act (ESA). A significant increase in numbers of nesting pairs, productivity, and distribution allowed Bald Eagle to be reclassified from Endangered to Threatened in 1995 under the ESA 3. Bald Eagle was delisted in 2007, and numbers are considered to be stable to increasing across its range 4. The species has been assigned different state conservation ranks by the Wyoming Natural Diversity Database for the breeding season and nonbreeding season because the abundance of the species is different between seasons. NATURAL HISTORY Taxonomy: Bald Eagle is a member of the family Accipitridae, which includes kites, eagles, harriers, and hawks 5. There are two subspecies of Bald Eagle; H. l. alascanus is found north of 40 degrees latitude across North America, including Wyoming, while H. l. leucocephalus is found south of 40 degrees latitude in the Gulf coast states 6. -
Regional Specialties Western
REGIONAL SPECIALTIES WESTERN OSPREY 21 - 26” length SOUTHERN . FERRUGINOUS . Eagle sized; clean, white body. HAWK Black wrist marks. 20 - 26” length . Glides with kink (M) in long, narrow wings. MISSISSIPPI . Largest buteo; eagle-like. KITE . Pale below with dark leggings. 13 - 15” length . Mostly white tail; 3 color morphs. Long, pointed wings; slim body. Light body; dark wings; narrow, black tail. Not to scale. Buoyant, acrobatic flight. NORTHERN HARRIER 16 - 20” length PRAIRIE FALCON 14 - 18” length . Long, narrow wings and tail; sharp dihedral. Size of Peregrine; much paler plumage. Brown above, streaked brown below – female. Narrow moustache; spotted breast; long tail. Gray above, pale below with black wing tips – male. Dark armpits and partial wing linings. WING PROFILE IMMATURE BALD EAGLE BALD EAGLE GOLDEN EAGLE . Immature birds vary GOLDEN EAGLE greatly in the amount 27 to 35” length of white spotting on body and wings. White showing on wing linings is surely a Bald Eagle. BALD EAGLE . Like large buteo, curvy wings. Head protrudes much less than tail. Slight dihedral to wing profile. NOTE: Some hawks soar and glide with their wings raised above the horizontal, called a dihedral. 27 to 35” length . Head and tail length similar. Long, flat wings. Straight leading edge to wings. 24 to 28” length This guide developed by Paul Carrier is the property of the Hawk Migration Association of North America (HMANA). HMANA is TURKey VUltUre a membership-based, non-profit organization committed to the . Dark wing linings with light flight feathers. conservation of raptors through the scientific study, enjoyment, and . Small head; long tail; sharp dihedral. -
Predation by a Golden Eagle on a Brown Bear Cub
SHORT COMMUNICATION N Sørensen et al. Predation by a golden eagle on a brown bear cub Ole J. Sørensen1,4, Mogens Totsa˚ s2, Tore eagles attending bears. Murie hypothesized that Solstad2, and Robin Rigg3 eagles attending bears were waiting for opportunities to capture prey trying to escape from the bears. He 1North-Trondelag University College, Department of also observed eagles swooping at and diving low over Natural Resource Sciences and Information Technology, grizzlies and other carnivores, but interpreted this Box 2501, N-7729 Steinkjer, Norway behavior as play or curiosity, rather than predation. 2 Norwegian Nature Inspectorate, N-7485 Trondheim, C. McIntyre (US National Park Service, Fair- Norway 3 banks, Alaska, USA, personal communication, 2008), Slovak Wildlife Society, PO Box 72, 033 01 Liptovsky a golden eagle researcher in Denali National Park for Hradok, Slovakia many years, has never seen an eagle attack a bear, although she has often observed eagles following Abstract: During spring 2004 an adult female brown bears in open terrain, perhaps positioning themselves bear (Ursus arctos) and her 3 cubs-of-the-year were to take prey escaping from the bear as suggested by observed outside their den on a south-facing low- Murie. Commensalistic hunting, as well as curious or alpine slope in central Norway. They remained near play behavior by eagles in the vicinity of bears, could the den for 8–10 days and were, except for one day, be misinterpreted as eagles hunting, attacking, or observed daily by Totsa˚s and other wardens of the inspecting bears as possible prey. Predation by eagles Norwegian Nature Inspectorate. -
A Comparison of Raptor Densities and Habitat Use in Kansas Cropland and Rangeland Ecosystems
j. RaptorRes. 34(3):203-209 ¸ 2000 The Raptor ResearchFoundation, Inc. A COMPARISON OF RAPTOR DENSITIES AND HABITAT USE IN KANSAS CROPLAND AND RANGELAND ECOSYSTEMS CHRISTOPHER K. WILLIAMS Departmentof WildlifeEcology, University of Wisconsin,Russell Labs, 1630 LindenDrive, Madison, WI 53706-1598 U.S.A. ROGER D. APPLEGATE Departmentof Wildlifeand Parks,Research and SurveyOffice, P.O. Box 1525, Emporia,KS 66801-1525 U.S.A. R. SCOTT LUTZ AND DONALD H. RUSCH Departmentof WildlifeEcology, University of Wisconsin,Russell Labs, 1630 LindenDrive, Madison, WI 53706-1598 U.S.A. ABSTRACT.--Wecounted raptors on line transectsalong roads to assessdensities, species diversity, and habitat selection of winter raptors between cropland and rangeland habitats in eastern Kansas.We conductedcounts every 2 wk betweenSeptember-March 1994-98. Speciesdiversity indices did not differ between the two habitats (P -- 0.15). We calculateddensity estimates and cover type selectionfor Red- tailed Hawks (Buteojamaicensis),Northern Harriers (Circuscyaneus), and American Kestrels(Falco sparv- erius).Red-tailed Hawks and Northern Harrier densitieswere higher in cropland, while kestreldensities did not differ betweenthe two habitats.All three speciesacross both habitatshad a general preference for idleland habitat. We believe three factors could explain the higher raptor densitiesin cropland: increasedprey abundance,increased visibility of prey associatedwith harvestedagriculture fields, and/ or a higher relative amount of preferred hunting habitat. K•¾WORDS: NorthernHarri• -
Anthony, R.G., J.A. Estes, M. A. Ricca, A. K. Miles, and E. D. Forsman
Ecology, 89(10), 2008, pp. 2725–2735 Ó 2008 by the Ecological Society of America BALD EAGLES AND SEA OTTERS IN THE ALEUTIAN ARCHIPELAGO: INDIRECT EFFECTS OF TROPHIC CASCADES 1,5 2 3 3 4 ROBERT G. ANTHONY, JAMES A. ESTES, MARK A. RICCA, A. KEITH MILES, AND ERIC D. FORSMAN 1U.S. Geological Survey, Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon 97331 USA 2U.S. Geological Survey, Western Ecological Science Center, University of California, Santa Cruz, California 95060 USA 3U.S. Geological Survey, Western Ecological Science Center, University of California, Davis, California 95616 USA 4U.S. Forest Service, Pacific Northwest Research Station, 3200 Jefferson Way, Corvallis, Oregon 97331 USA Abstract. Because sea otters (Enhydra lutris) exert a wide array of direct and indirect effects on coastal marine ecosystems throughout their geographic range, we investigated the potential influence of sea otters on the ecology of Bald Eagles (Haliaeetus leucocephalus) in the Aleutian Islands, Alaska, USA. We studied the diets, productivity, and density of breeding Bald Eagles on four islands during 1993–1994 and 2000–2002, when sea otters were abundant and scarce, respectively. Bald Eagles depend on nearshore marine communities for most of their prey in this ecosystem, so we predicted that the recent decline in otter populations would have an indirect negative effect on diets and demography of Bald Eagles. Contrary to our predictions, we found no effects on density of breeding pairs on four islands from 1993–1994 to 2000–2002. In contrast, diets and diet diversity of Bald Eagles changed considerably between the two time periods, likely reflecting a change in prey availability resulting from the increase and subsequent decline in sea otter populations. -
Masters of the Air (PDF)
What are birds of prey? Birds of prey, or raptors, are amazing animals. They have large eyes that face forward, powerful talons and a hooked beak. Their food includes amphibians, birds, insects, mammals and reptiles. Scientists recognize eight major groups of birds as “birds of prey.” Buteos (large hawks) fly on wide, slow-beating wings which allow them to soar and search for prey. The short-eared owl (Asio flammeus) is endangered in They perch on tree limbs and fence or telephone posts. Illinois. It is a rare winter and summer resident in marshes, meadows, fields and parks. This owl has Accipters (true hawks) have a long tail (like a rudder) and short rounded wings. When flying, they very small ear tufts and a golden-brown body with make several quick wing beats and then glide. True hawks are aggressive and very quick. dark marks on its chest, belly and back. Dark rings circle the owl’s bright yellow eyes. It is 13-17 inches Ospreys can be recognized by wings that appear to be “bent,” or angled, when they fly. Found near long and has a wingspan of 38-44 inches. The large bodies of water, they dive feet-first to catch fishes. short-eared owl feeds on rodents, insects and Falcons have long, thin, pointed wings, a short bill and a streamlined body. They can fly very fast. small birds during the late afternoon and early evening. It is known to play dead when Eagles are larger than hawks and have longer wings. Their bill is almost as long as their head. -
Iowa Wildlife Action Plan Appendix 1
IOWA WILDLIFE ACTION PLAN APPENDIX 1 - APPENDIX 21 187 APPENDIX 1 . The IWAP - A Plan to Plan Planning Schedule The target date for a final review draft of a State Comprehensive Wildlife Plan for Iowa is June 1, 2005. Meeting this deadline will allow for adequate review and approval by the Director and the Natural Resource Commission prior to the September 20, 2005 deadline. Developing a more detailed planning schedule will be one of the first tasks of the steering committee in coordination with the plan author. Plan Contributors Plan Director – Richard Bishop – Iowa DNR Responsibilities 1) Participate in committee meetings 2) Review all drafts of the plan 3) Approve all press releases and plan marketing plans 4) Review and communicate progress to Division Administrator, Director and NRC commissioners Plan Coordinator – Terry Little, Iowa DNR Responsibilities 1) Assemble Steering Committee 2) Participate in all committees 3) Identify and contract with a meeting facilitator 4) Identify and contract with plan author 5) Coordinate review and editing of all drafts of the plan 6) Coordinate all press releases and plan marketing 7) Report progress, problems and other developments to DNR administrators Steering Committee Chair – Doug Harr, Iowa DNR Responsibilities 1) Convene and coordinate all steering committee meetings 2) Keep steering members and sub-committees focused, on task and on schedule 3) Consult with coordinator and committee members to solve problems 4) Plan, schedule and coordinate advisory committee meetings Steering Committee Members – Key representatives from Iowa’s conservation professionals 1) Dale Garner (DNR): a. 2003-04: Coordination with Federal plans (PPJV, etc.) b. -
Bald Eagle Nest in a Manitoba Heron 30L0ny Eagle/Coyote
The Ring-billed Gull colony were several weeks old while heron appeared to contain complete chicks were just beginning to hatch. dutches, although no young had yet The observation is of interest and latched. Their nests contain “usually worthy of future field observation to three, sometimes two, very rarely determine if the two species will co¬ four” eggs.1 Sixty-two of these Ring- exist in such close proximity. The pilled Gull nests contained four eggs, abandonment of a heron colony at eight had five eggs and one had six Beaver Lake (54° 43’ N, 111° 53’ W) aggs. The remaining gull nests had between 1970 and 1972 supposedly he usual three. Numbers of four- due to the establishment of an eagle and five-egg clutches appear nest in the colony was reported by significant because they infer a larger Vermeer (Can. Field Nat. 87:427- than normal clutch size rather than 432). the pairing of two females. Other Ring-billed Gull colonies surveyed in 1979 contained abnor¬ mal clutch sizes, but none ap¬ EAGLE/COYOTE proached the proportion INCIDENT documented on the Bachelor’s Island polony. SIG JORDHEIM, White Bear, Sask¬ HARRISON, COLIN. 1978. A field guide atchewan, SOL 3L0. to the nests, eggs and nestlings of North American birds. Collins, New On 25 November 1979, I was on a York. 416 pp. hill overlooking Lake Diefenbaker. At this late date there were still several hundred Canada Geese and Mallard ducks on about an acre of open BALD EAGLE NEST IN A water toward the south shore of the MANITOBA HERON lake. -
Town of Superior Raptor Monitoring 2019 Summary
Town of Superior Raptor Monitoring 2019 Summary Sponsored by the Open Space Advisory Committee Introduction: In late 2018, the Town of Superior Open Space Advisory Committee initiated a program to monitor the presence and activity of raptors (eagles, hawks, falcons, and owls) in and near Superior. The program has several goals: determining what raptor species are present in Superior, learning what areas raptors use at different times of the year, monitoring any nesting activity, working to prevent unnecessary disturbance to raptors, identifying habitats to protect, and providing relevant education to the Town’s residents. Nine volunteer observers, all Superior residents, monitored seven general locations approximately weekly during the 2019 nesting season and identified eight species of raptors in the target areas. Some of these species use open spaces in Superior only intermittently, for hunting or migration. However, monitors determined that four species nested in or adjacent to Superior in 2019; ten nests were located and at least nine of them produced fledglings. The nesting species were Great Horned Owl, Red-tailed Hawk, Cooper’s Hawk, and American Kestrel. Background: Southeast Boulder County, and especially the prairie dog colonies along Rock Creek west of Hwy 36, historically supported significant densities of several raptor species, especially during winter. As late as the mid-1980s, winter bird counts showed that our area had one of the highest populations of Ferruginous Hawks in the entire U.S. [3,4]. With the loss of open space due to increasing development in the 1990s and the additional reduction of prairie dogs due to intermittent plague epidemics, populations of large open-country raptors in Figure 1 - Cooper's Hawk by Barbara Pennell and near Superior declined precipitously [2]. -
Appendix 1- Species of Greatest Conservation Need Michigan’S Wildlife Action Plan 2015- 2025
Appendix 1- Species of Greatest Conservation Need Michigan’s Wildlife Action Plan 2015- 2025 Cover Photos Credits Habitat – MNFI, Yu Man Lee Cerulean Warbler – Roger Eriksson Category Common Name Scientific Name Inclusion Rationale Amphibians Blanchard’s cricket frog Acris crepitans Expert review (2005); blanchardi Technical Advisory Committee for the T&E list revision recommended this species to remain listed as Threatened (2014). There are current records across the species historical range, the southern third of the Lower Peninsula, but abundance is unknown and only historical records exist for several central counties. This species should stay listed as state threatened due to limited area of occupancy and declines. (TAC 2014) Amphibians Boreal chorus frog Pseudacris triseriata Expert review (2005); maculata Technical Advisory Committee for the T&E list revision recommended this species to remain listed as Special Concern (2014). The historical range of this species was restricted to Isle Royale; although the species appears to remain intact, abundance is unknown. Amphibians Marbled Salamander Ambystoma opacum Expert review (2005); Technical Advisory Committee for the T&E list revision recommended this species to be delisted from Endangered to Special Concern (2014). The historical range is limited to a small portion of the southwest Lower Peninsula and represents the northernmost extent of the species' range. The current distribution and abundance are not known, and no observations have been reported since the 1980s. It is unknown if this species is still present in Michigan as field research has been extremely limited in the small area of Category Common Name Scientific Name Inclusion Rationale known occupancy. -
Raptor Identification
Raptor Identification JCOS Raptor Protection Number of volunteers: 32 Total volunteer observation hours: 708 Number of nests monitored in 2018: 56 Species monitored include: Golden eagle, prairie falcon, peregrine falcon, great horned owl, Swainson’s hawk, red-tailed hawk, cooper’s hawk What is a raptor? Usually people answer this question with: A bird that eats other animals. What is a raptor? And here is another common answer… What is a raptor? Some birds look a lot like raptors, but are not. What is a raptor? Some birds act a lot like raptors, but are not. Audubon Guide to North American Birds What is a raptor? A raptor is a diurnal bird that eats other animals using specialized tools. What is a raptor? Raptors are a “gateway” species. Easy to see Engaging to watch Offer insight into the health of an ecosystem Nature Hates Competition: Habitat? Behavior? Flight pattern? Wing pattern? Raptor ID challenges: Color morphs Juvenile vs. adult plumage Sexual dimorphism Perching raptors offer scant ID info compared to raptors in flight Main Raptor Groups: Eagles Accipiters Buteos Falcons Raptors: Eagles Raptors: Eagles White head Bald Eagle Massive, yellow bill White tail Yellow talons Raptors: Eagles No white head Massive bill (but Juvenile Bald Eagle not yellow) White feathers scattered through the breast and wings Yellow talons Raptors: Eagles Golden Eagle Golden head Massive bill Some white in tail and wings in juvenile. Raptors: Accipiters https://www.youtube.com/watch?v=Td8bmr-6AHs https://www.youtube.com/watch?v=2CFckjfP-1E Dark gray