currawong

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Related to Strepera: Pied Currawong

currawong

any Australian crowlike songbird of the genus Strepera, having black, grey, and white plumage: family Cracticidae
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Species Population trend Population status Mallard E, EU27: stable E, EU27: LC Anas platyrhynchos Common teal E: unknown E, EU27: LC Anas crecca EU27: decreasing Eurasian wigeon E: stable E: LC, EU27: VU Mareca penelope EU27: decreasing Northern pintail E, EU27: decreasing E: LC, EU27: VU Anas acuta Garganey E, EU27: decreasing E: LC, EU27: VU Spatula querquedula Northern shoveler E, EU27: stable E, EU27: LC Spatula clypeata Gadwall E, EU27: increasing E, EU27: LC Mareca strepera Common pochard E, EU27: decreasing E, EU27: VU Aythya ferina Common goldeneye E: stable E, EU27: LC Bucephala clangula EU27: decreasing Tufted duck E: stable E, EU27: LC Aythya fuligula EU27: decreasing
Rostratula benghalensis (Greater Painted Snipes), Anas clypeata (Northern Shoveler), Anas penelope (Eurasian Wigeon), Aythya fuligula (Tufted Duck), Gallinura chloropus (Common Moorhen), Larus brunnicephalus (Brown Headed Gull), Anas querquedula (Gargeney), Tringa stagnatilis (Marsh Sandpiper), Fulica atra (Common Coot), Tringa totanus (Common Redshank), Dendrocygna bicolor (Fulvous Whistling Duck), Anas acuta (Northern Pintail), Todorna ferruginea (Ruddy Shelduck), Nycticorax nycticorax (Black-Crowned Night Heron), Vanellus cinereus (Grey-headed Lapwing), Netta rufina (Red-Crested Pochard), and Anas strepera (Gadwall).
Other waterfowl species commonly observed on the reservoir include American wigeon (Anas americana), gadwall (Anas strepera), bufflehead (Bucephala albeola), Canada goose (Branta canadensis), ruddy duck (Oxyura jamaicensis), wood duck (Aix sponsa), and blue-winged teal (Anas discors).
Relative intensity of predation also was: 1) high but variable on relatively rare, migrant belted kingfishers in both segments; 2) more variable on species that sustained lower relative intensity of predation in the usually turbid segment; and 3) zero on some species that were relatively abundant during pre-nesting or nesting periods, such as gadwalls (Anas strepera), buffleheads (Bucephalus albeola), and spotted sandpipers (Actitis macularia), respectively (Tables 1 and 2).
In a 1947 winter aerial census, 177 435 ducks were counted, including 46 200 lesser scaups (Aythya affinis), 41 900 gadwalls (Anas strepera), and several thousand black-bellied whistling ducks (Saunders and Saunders 1981).
0.45 U Anas strepera Gadwall WR 0.14 R Anas discors Blue-winged Teal T 0.24 U Anas cyanoptera Cinnamon Teal T Anas crecca Green-winged Teal T Phalacrovorax auritus Double-crested T Cormorant Egretta tricolor Tricolored Heron O 0.02 R Nycticorax nycticorax Black-crowned Night-Heron WR 0.10 R Plegudix chihi # White-faced Ibis T Myaeria americana *#+ Wood Stork O Circus cyaneus Northern Harrier O Accipiter striatus * Sharp-shinned Hawk WR 0.07 R Accipiter cooperii * Cooper's Hawk WR 0.07 R Buteo albicattdatus *# White-tailed Hawk O 0.02 R Falco sparverius American Kestrel T 0.03 R Faico cohuvbarius Merlin WR?
strepera), greylag goose (Anser anser), pochard (Aythya ferina), and coot (Fulica atra).
strepera) from the four counties searched during my study.
A total of 14 species were inventoried during the study period: White-headed Duck, Garganey Anas querquedula, Eurasian Teal Anas crecca, Tufted Duck Aythya fuligula, Ferruginous Duck, Mallard Anas platyrhyncos, Northern Shoveler Anas clypeata, Gadwall Anas strepera, Eurasian Wigeon Anas penelope, Northern Pintail Anas acuta, and Common Pochard Aythya ferina (Anatidae); and Common Coot Fulica atra, Common Moorhen Gallinula chloropus, and Purple Swamphen Porphyrio porphyrio (Rallidae).