| mortality of western burrowing owls ( athene cunicularia hypugaea) associated with brodifacoum exposure. | western burrowing owls ( athene cunicularia hypugaea) frequently occupy periurban areas, where they may be exposed to pest control agents. this short communication describes necropsy findings and detected brodifacoum rodenticide levels for four western burrowing owls in lake havasu city, arizona, us, 2013-15. levels detected ranged from 0.077 mg/kg to 0.497 mg/kg. brodifacoum, one of several second-generation anticoagulant rodenticides recently removed from the general consumer market, is still ... | 2017 | 27763828 |
| population density of the western burrowing owl (athene cunicularia hypugaea) in mexican prairie dog (cynomys mexicanus) colonies in northeastern mexico. | the western burrowing owl (athene cunicularia hypugaea) occurs throughout western north america in various habitats such as desert, short-grass prairie and shrub-steppe, among others, where the main threat for this species is habitat loss. range-wide declines have prompted a need for reliable estimates of its populations in mexico, where the size of resident and migratory populations remain unknown. | 2016 | 27566259 |
| sleep in the burrowing owl (speotyto cunicularia hypugaea). | | 1972 | 4339456 |
| burrowing owls, pulex irritans, and plague. | western burrowing owls (athene cunicularia hypugaea) are small, ground-dwelling owls of western north america that frequent prairie dog (cynomys spp.) towns and other grasslands. because they rely on rodent prey and occupy burrows once or concurrently inhabited by fossorial mammals, the owls often harbor fleas. we examined the potential role of fleas found on burrowing owls in plague dynamics by evaluating prevalence of yersinia pestis in fleas collected from burrowing owls and in owl blood. dur ... | 2015 | 26367482 |
| migratory decisions in birds: extent of genetic versus environmental control. | migration is one of the most spectacular of animal behaviors and is prevalent across a broad array of taxa. in birds, we know much about the physiological basis of how birds migrate, but less about the relative contribution of genetic versus environmental factors in controlling migratory tendency. to evaluate the extent to which migratory decisions are genetically determined, we examined whether individual western burrowing owls (athene cunicularia hypugaea) change their migratory tendency from ... | 2009 | 19437042 |
| detecting burrowing owl bloodmeals in pulex irritans (siphonaptera: pulicidae). | pulex irritans l. is a cosmopolitan flea species that infests a wide variety of hosts. in north america it generally parasitizes large wild mammals, but in the pacific northwest an association has emerged between p. irritans and the western burrowing owl (athene cunicularia hypugaea). while investigators have recognized this association for decades, it has not been clear if p. irritans feeds on burrowing owls, or if the owls serve exclusively as phoretic hosts. here we describe using a real-time ... | 2016 | 26545716 |