Captive Breeding of Birds
نویسنده
چکیده
منابع مشابه
Extensive recombination detected among beak and feather disease virus isolates from breeding facilities in Poland.
Beak and feather disease virus (BFDV) causes the highly contagious, in some cases fatal, psittacine beak and feather disease in parrots. The European continent has no native parrots, yet in the past has been one of the world's biggest importers of wild-caught exotic parrot species. Following the banning of this practice in 2007, the demand for exotic pet parrots has largely been met by establis...
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I N the past several years I have kept eight Sparrow Hawks (F&o sparverius) in captivity for use in experiments in prey selection and the motivation for predatory behavior. Four of the birds were taken from nests at approximately two to three weeks of age and were hand-reared in my laboratory and four were trapped as free-flying birds. All birds were handled frequently and became quite tame. Th...
متن کاملRapid loss of antipredatory behaviour in captive-bred birds is linked to current avian invasions
Despite the importance of behaviour in conservation biology, there have been few studies that address behaviour in areas such as invasion ecology. There is an urgent need to identify specific traits that facilitate the establishment and spread of alien species to prevent biological invasions and their impact on biodiversity. Changes in antipredatory behaviour in captivity have been proposed to ...
متن کاملWhen the Seasons Don't Fit: Speedy Molt as a Routine Carry-Over Cost of Reproduction
The failure of animals to fit all life-cycle stages into an annual cycle could reduce the chances of successful breeding. In some cases, non-optimal strategies will be adopted in order to maintain the life-cycle within the scope of one year. We studied trade-offs made by a High Arctic migrant shorebird, the red knot Calidris canutus islandica, between reproduction and wing feather molt carried ...
متن کاملFlight Feather Molt of Turkey Vultures
—We document the molt sequence of flight feathers in Turkey Vultures (Cathartes aura) based on studies of captive and wild birds, and examination of museum specimens. We found an unusual pattern of primary replacement, which appears to be a modified form of Staffelmauser, or stepwise wing molt. A Staffelmauser-like strategy for replacement of the secondaries is also described. These patterns of...
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