| [tuberculosis in raptorial birds. clinical cases and differential diagnosis]. | four cases of avian tuberculosis in two goshawks (accipiter gentilis gentilis), a lanner falcon (falco biarmicus sp.) and a kestrel (falco tinnunculus tinnunculus) are reported. all birds, except for the kestrel, were affected with generalized tuberculosis. clinically, the lanner falcon and kestrel showed lameness due to tuberculous arthritis of a knee joint. one of the goshawks died suddenly. on post-mortem examination, the bird was found to be emaciated, and there was involvement of one knee j ... | 1982 | 7135364 |
| variation of a carotenoid-based trait in relation to oxidative stress and endocrine status during the breeding season in the eurasian kestrel: a multi-factorial study. | carotenoid-based skin colorations vary seasonally in many bird species and are thought to be honest sexually selected signals. in order to provide more insight in the potential signal function and underlying mechanisms of such colorations we here quantified patterns of variation of leg coloration in adult male and female eurasian kestrels (falco tinnunculus tinnunculus) over the breeding season, and evaluated the relationship between coloration and levels of carotenoids, androgens and estrogens, ... | 2011 | 21620990 |