Unidentified bird remains (bones and feather shafts) could most often be assigned to "large" (anseriform
and galliform) or "small" (charadriiform and passeriform) bird classes for biomass estimation, even if they could not be classified to order.
These results suggest that the potential for HPAI (H5N1) viral shedding and the movement of infected birds may be species-dependent and can help explain observed deaths associated with HPAI (H5N1) infection in anseriforms
In birds with an elongated neck (e.g., in anseriform
species), 2 technicians may be required for correct symmetrical restraint.
To our knowledge, these are the first reports of a folliculoma and basosquamous carcinoma in an anseriform
Key words: pharmacokinetics, antibiotic, fluoroquinolone, marbofloxacin, avian, anseriform
, mallard duck, Anas platyrhynchos
(10) Beak injuries are also commonly seen in wild Anseriform
birds, mainly as a result of predator attacks and strangulation with fishing lines." In waterfowl, such as ducks, geese, and swans, the beak is thin and soft (12,13); this may lead to a higher fracture rate consequent to traumatic incidents compared with other species.
Two cases of neoplasia of basal cell origin affecting the axillary region in anseriform
HPAI HSN1 virus is found most commonly in domestic fowl, although as of late 2005, it has been found in migratory and resident birds of several orders (mainly Anseriformes
) and in pigs, civets, house cats, tigers, leopards, and humans (3).
Prey were categorized into 11 relatively discrete groups (guilds) on the basis of body size and our observations of their behavior (Tables 1 and 2): 1) large wasps; 2) waterfowl (Anseriformes
, Podicipediformes, and similar birds); 3) small raptors and scavengers (e.g., American kestrels Falco sparoarius and common ravens Cocoas corax); 4) shorebirds (Charadriiformes, except large Laridae); 5) waders and other large, non-anseriform waterbirds (e.g., Ciconiiformes and large Laridae); 6) belted kingfishers (Ceryle alcyon); 7) aerially feeding white-throated swifts and Hirundinidae, especially violet-green swallows; 8) non-riverine terrestrial birds (e.g., Columbiformes and terrestrial Passeriformes); 9) unidentified birds; 10) bats; and 11) other terrestrial taxa (mammals and reptiles).
, including Canada geese, usually have a higher relative number of circulating lymphocytes than heterophils with an H: L ratio between 0.4 : 1 and 0.7 : 1, and juvenile birds often have higher lymphocyte percentages than adults.