3 edition of Harlequin duck surveys in western Montana found in the catalog.
In 1995, Harlequin Duck pair surveys were conducted on 329 km of 22 streams finding a minimum of 37 males and 23 females. A sex ratio of 1.51:1 (m:f, n=600) was observed during 1974-1975 and 198901995 Montana pair surveys. Brood surveys were conducted on 371 km of 23 streams yielding a minimum of 16 females, 40 juveniles, and 2 unknowns. Harlequins were reported on 19 additional streams. Breeding was confirmed for the first time on both the Middle Fork of Rock Creek, Deerlodge National Forest (Ben Canard pers. comm.) and the West Fork of the Yaak River, Kootenai National Forest in 1995. John Gangemi observed six female Harlequins in June 1995 on the Wigwam River, just north of the U.S. Canadian border in Alberta, indicating for the first time that this stream has a breeding population. Though breeding was observed in 1990 on Big Creek (Koocanusa) and Trout Creek (Superior), no birds were seen during 1995 pair surveys. Likewise ducks were seen in 1988 on Quartz Creek but not during this year"s survey. A minimum of 151 pairs of ducks nest in Montana representing an estimated 198 total pairs; there are currently 33 Harlequin Duck Eos and 32 streams, surveyed 0-5 times each, where Harlequin Ducks have been observed or reported but on which the breeding status is unknown. Reproductive success, on streams surveyed both for pairs and broods in 1995, averaged 0.23 broods per female; average brood size at or near fledging (Class III) was 3.82. In Montana during 1974-1975 and 1989-1995, annual numbers of ducklings fledged per adult female averaged 1.39 and ranged from 0.13 to 3.15 (n=305 adult females). Brood size (IIb to fledging) averaged 3.59 and ranged from 2.00-5.86 (n=118 broods). The proportion of females successfully raising a brood in a single year varies widely between years. In Montana, stream surveys between 1974 and 1995 found 305 females raising 118 broods, for an average of 38.7% (range 7-55%). We continued banding Harlequin Ducks in the Flathead and Clark Fork drainages. During 1995 in Montana, 10 adult males, 12 adult females, and 35 juveniles were captured and banded on 7 streams, bringing the total number banded since 1991 to 249 (39 males, 53, females and 157 juveniles). Adult males returned to their breeding streams from the previous year on 53% (n=51) of occasions, while females returned at a rate of 57% (n=81). A minimum of 24 birds banded in Montana have been sighted in Oregon (2), Washington (1), and southern British Columbia (21), including Vancouver Island and Hornby Island. Sexes and ages at banding show the following numbers and percentages observed: adult females (6, 11%), adult males (2, 5%), juvenile females (9,7%), and juvenile males (7, 5%). In Montana and Idaho, several relatively long-distance movements have been documented both within and between years. Two males and several breeding females were observed using different nearby drainages during different years, indicating that movements within a drainage of up to 30 km may regularly, but rarely occur. Of 100 ducklings marked in 1992-1993 in Montana, 14 females are known to have survived at least 2 years; of these, 5 were reported only from their natal stream, 1 only from the coast, and 8 from both the coast and the natal breeding stream. Seven males marked as juveniles were seen only on the coast; none have been reported from their natal stream.
|Statement||submitted by James D. Reichel and David L. Genter; a report to Kootenai National Forest, Helena National Forest, Montana Department of Fish, Wildlife and Parks, and National Park Service, Glacier National Park.|
|Contributions||Genter, David Leon., Montana Natural Heritage Program., Kootenai National Forest (Agency : U.S.), Helena National Forest (Agency : U.S.), Montana. Dept. of Fish, Wildlife, and Parks., Glacier National Park (Agency : U.S.)|
|The Physical Object|
|Pagination||vii, 107 p. :|
|Number of Pages||107|
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Harlequin Duck Long Billed Curlew Rosy-finches Search by typing & pressing enter Search by typing & pressing enter. YOUR CART. Black Swift surveys. Black Swifts were the last avian species described in North America, discovered in , and were one of the most mysterious until their interior western North American waterfall nesting habitat. Glacier National Park and Montana Fish, Wildlife and Parks joined forces last year to learn more about Montana's breeding Harlequin Duck population. In , six male Harlequins were outfitted with transmitters; data from the these birds indicated some wintering activity around Vancouver Island. The females of the pairs were outfitted with geolocation devices to similarly track their movements.
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Harlequin Harlequin duck surveys in western Montana book surveys in western Montana: [James D Reichel, David Leon Genter, Montana Natural Heritage Program] on *FREE* shipping on qualifying offers. This is a reproduction of a book published before This book may have.
Harlequin duck surveys in western Montana: [James D Reichel; David Leon Genter; Montana Natural Heritage Program.; Kootenai National Forest (Agency: U.S.)] -- Breeding pair surveys for Harlequin Duck were done on km of 18 streams during May and June, ; a total of 57 Harlequins (32 males and 25 females) were seen on 9 streams.
Title. Harlequin duck surveys in western Montana: / By. Reichel, James D. Genter, David Leon. Montana Natural Heritage Program. The proportion of females successfully raising a brood in a single year varies widely between years. In Montana, stream surveys between and found females raising broods, for an average of % (range %).
We continued banding Harlequin Ducks in the Flathead and Clark Fork : InHarlequin Duck pair surveys were conducted on km of 22 streams finding a minimum of 37 males and 23 females. A sex ratio of (m:f, n=) was observed during and Montana pair surveys.
Brood surveys were conducted on km of 23 streams yielding a minimum of 16 females, 40 juveniles, and 2 unknowns. Breeding pair surveys for Harlequin Duck were done on km of 20 streams during May and June, ; a total of 42 Harlequins (27 males and 15 females) were seen on 6 streams.
Brood surveys were done on km of 21 streams during July and August, ; a total of 78 Harlequins (19 females, 59 young in 21 broods) were seen on 9 : Harlequin duck surveys in western Montana: / submitted by James D. Reichel and David L. Genter; a report to USDA Forest Service, Kootenai National Forest.
Stream width ranges from 3 m to 35 m in Montana. Harlequin Ducks in Glacier National Park used straight, curved, meandering, and braided stream reaches in proportion to their availability (Ashley ).
ABSTRACT Inwe conducted Harlequin Duck pair surveys (including Glacier National Park) on approximately km of 10 streams and found a minimum of 33 males and 25 females. Literature Cited Bate, L. Harlequin duck surveys and tracking in Glacier National Park, Montana.
Unpublished report. Division of Natural Resources, Glacier National Park, West Glacier, Montana. Turbulent northern waters are favored by this strikingly patterned little duck. It is often found in summer on rushing rivers, diving and swimming against the current, climbing easily on steep and slippery rocks above the water.
When moving inland, pairs of Harlequins usually fly low, following every bend of the river rather than taking overland shortcuts.
In winter, seems to choose the. Buy Harlequin Duck Surveys in Western Montana Books online at best prices in India by David Leon Genter,Montana Natural Heritage Program,James D Reichel from Buy Harlequin Duck Surveys in Western Montana online of India’s Largest Online Book Store, Only Genuine Products.
Lowest price and Replacement Guarantee. Cash On Delivery Available. Read "Harlequin duck surveys in western Montana: " by James D Reichel,David Leon Genter,Montana Natural Heritage Program,Kootenai National Forest.
James D. Reichel is the author of Harlequin duck surveys in western Montana ( avg rating, 0 ratings, 0 reviews), Harlequin Duck Surveys in Western Mon. Arctic Geese Surveys. A variety of surveys are conducted each year on breeding, staging, and wintering areas to assess status and trends of goose species and populations.
Surveys are conducted by, and in collaboration with, a broad range of Canadian and. There are no recognized subspecies of Harlequin Duck.
The eastern (Atlantic) and western (Pacific) populations of the species were historically considered subspecies, and are managed as two separate populations 2.
Description: Harlequin Duck is identifiable in the field. The species is 33 to 46 cm long, smaller than most other ducks. Montana Field Guide contains a wealth of information about Montana's diverse species.
Swans / Geese / Ducks - Anatidae. Species. American Black Duck Anas rubripes. American Wigeon Mareca americana. Harlequin Duck Histrionicus histrionicus Species of Concern.
Hooded Merganser. While the harlequin duck study within Glacier National Park will conclude this fall, scientists throughout North America will continue to survey and collect information from banded harlequins. A University of Montana graduate student is expected to publish a thesis.
Full Blog with Videos: m/trip/harlequin-duck-survey/ I have been looking forward to helping the biologist of Glacier National Park with. Harlequin duck surveys in western Montana: Montana Natural Heritage Program, Helena, MT.
vii + pp. Montana Natural Heritage Program, Helena, MT. vii + pp. The drab brown female blended into the background of river rocks. But her mate’s bold colors and patterns gave the pair away as harlequin ducks.
One of Montana’s most unusual waterfowl species, the harlequin is the only duck in North America that requires clear, fast-moving mountain streams for .Results of Harlequin Duck (Histrionicus Histrionicus) Surveys in on the Flathead National Forest, Montana Volume by John C Carlson, Montana Natural Heritage Program, et al.*Harlequin Enterprises ULC () is located at Bay Adelaide Centre, East Tower, 22 Adelaide Street West, 41st Floor, Toronto, Ontario, Canada M5H 4E3 and sends informational and promotional emails on behalf of itself and Harlequin Digital Sales Corporation.
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