In contrast, some species in Taihu, China, such as mallard Anas platyrhynchos, northern pintail
Anas acuta, gadwall Anas strepera, greater scaup Aythya marila, smew Mergellus albellus and falcated duck Anas falcata have been reported to exhibit a female-skewed sex ratio in one year, and a balanced ratio in another year.
Although psittacine birds are frequently cited as commonly afflicted with hernias, case reports exist for pigeons (Columba livia), (7,8) a common myna (Acridotheres tristis), (9) turkeys, (10) ducks (
Anas acuta, Anasplatyrhynchos), (11,13) chickens, (15) a cockatoo (Cacatua moluccensis), (14) and a red lory (Eos bornea).
Variation in spring migration routes and breeding distribution of northern pintails
Anas acuta that winter in Japan.
Nucleotides of central Javanese duck D-loop mtDNA aligned with the another Anas in the world that is Anas zonorhyncha (AY506969.1),
Anas acuta (HM063478.1), Anas platyrhynchos (KJ833587.1), and Cairina moschata (GQ922096.1) as out of the group.
According to Blumstein (1995) globally important birds like Snow Partridge (Lerwa lerwa), Himalayan Snow Cock (Tetraogallus himalayensis), Chukar Partridge (Alectoris chukar), Snow Pigeon (Columbia leuconota), Pintail (
Anas acuta), Common Teal (Anas crecca) and many others are found in the different areas of Gilgit-Baltistan.The Central Karakoram National Park (CKNP) is the largest Protected Area of Pakistan spanning over 10,000 km2 containing 230 villages within its buffer zone covering more than 7000 km2 (Anonymous, 2007).
Aythya fuligula (Tufted Duck), Aythya nyroca (Ferruginous Pochard), Netta rufina (Red-Crested Pochard), Aythya ferina (Common Pochard), Anas strepera (Gadwall), Tadorna ferruginea (Ruddy Shelduck), and
Anas acuta (Northern Pintail).
Both bones are too large for
Anas acuta, A clypeata, A Americana, Aythya americana and A.affinis and are slightly small for Anas platyrhynchos, to which the tarsometatarsus was originally referred.
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).
Herniation of the abdominal musculature has been reported in a variety of avian species including pigeons (Columba livia), (6) ducks (
Anas acuta, Anas platyrhynchos), (7,8) turkeys, (9) cockatiels (Nymphicus hollandicus), (10) a red lory (Eos bornea), (11) budgerigars (Melopsittacus undulatus), (12) sulfur-crested cockatoos (Cacatua galerita), (12,13) and galahs (Eolophus roseicapella).
During a targeted surveillance for avian influenza viruses (AIVs) conducted in migratory birds by Community Animal Health Outreach (CAHO) program on November 24, 2016, we collected 19 oropharyngeal and cloacal swab samples from diseased (mild depression) and dead migratory birds (common coot, Fulica atra; pintail ducks,
Anas acuta; and Garganey ducks, A.
Anas acuta - long-necked river duck of the Old and New Worlds having elongated central tail feathers