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Published byRosamond Cook Modified over 9 years ago
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Conservation of the Northern Pintail Anas acuta Kyle Sams
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Taxonomy Kingdom: Animalia Phylum: Chordata Class: Aves Order: Anseriformes Family: Anatidae Genus: Anas Species: acuta
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Northern Pintail Identification Drake Avg. length is 25” Avg. weight is 2.26 lbs. Chocolate brown head White neck, breast & belly, white finger up back of neck Pale grey bill, with black stripe down center Gray flanks & back, w/ black centers to back feathers Black under-tail coverts Long black central tail feathers Green speculum w/ white rear border & chestnut forward border
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Identification Hen Avg. length is 21.4” Avg. weight is 1.91 lbs. Tan head & neck Mottled tan & dark brown body, paler on belly Grey bill Brown speculum & white rear border
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Sub-Species Eaton’s Pintail’s Kerguelen Pintail (Anas eatoni eatoni) –Confined to Kerguelen islands off S. America Crozet Pintail (Anas eatoni drygalskyi) –Confined to Crozet islands, also off S. America
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Pintail Migration Among the first ducks to migrate –Most migrating through Cali. Others using the Mississippi flyway, to LA, TN, AL, & MS Also common visitors in Central America
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Breeding Range Breed from Alaska, central Canadian Arctic, Western Greenland, central USA –Boreal forest –Alaskan coastal areas –Prairie potholes
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Non-Breeding Range Mostly central California, Mexico & Gulf coasts, Texas panhandle, some on Atlantic coast –Over ½ migrate through Cali.
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Northern Pintail Range
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Mating Monogamous –Same pair mate for life Sexually mature at 1 year old Mate in late April –As late as the end of July
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Pintail Breeding Pairs
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The breeding pair numbers was obtained by the Black Duck Joint Venture helicopter survey
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Nesting Among the first to Nest Nests in open country, w/ shallow, seasonal wetlands, & low vegetation Copulation takes place in the water Nests is a scrape in ground in brush/grass, lined w/ grass & down; usually not near water Hen incubates eggs alone –Usually takes 21-25 days
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Young Clutch size is usually 8, range 3-14 Precocial young Fledge in 6-7 weeks Around ¾ live to fledge –Half of those live to breed –About 37.5%
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Feeding Characteristics Pintail’s are DABBLERS –Upend while in the water to feed Omnivorous –Feed on seeds, nutlets of aquatic plants, also eats mollusks, crabs, worms, fairy shrimp, & other aquatic insects Insects are more important to females during pre-laying & laying periods
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Predation People are #1 Coyotes Skunks Gulls, crows, magpies Badgers Raccoons
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Population History Pop. depends on wet-dry cycle In 1955, the breeding pop. was around 6 million –Fluctuating between 2 & 10 million In the 1970’s pop’s recovered when the wetland were good, but fell when prairies were dry & wetland conditions were poor Agriculture has cause most of the problems These factors combined have caused declining pintail population since the 1980’s
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Conservation Status Protected by the Migratory Bird Treaty Act Global status is at G5, secure Not endangered, pop. Are lower than desired N. American pop. was around 6 million –Reduced to about 2 million birds according to GDNR
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Northern Pintail Distribution
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Management Protect & restore wetlands Adequate migration & wintering habitats must be protected, restored, & enhanced Protect northern boreal & tundra habitats Develop farm programs compatible w/ pintail life style Manage for moist soil to stimulate the growth of native plants Manage for available cover Cut back on harvest Proper use of fertilizers, pesticides, & herbicides
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Economical Importance One of the most sought after ducks by duck hunters Damage grain crops and cost farmers money
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Interesting Facts Range over more of the Earth than any other waterfowl
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