Two adult female elf owls
(Micrathene whitneyi) were treated with leuprolide acetate depot injections to prevent egg laying.
The possible occurrences in the area of species with restricted distributions in the United States and with breeding ranges extending into much of Mexico, such as elf owls (Micrathene whitneyi) and ferruginous pygmy-owls (Glaucidium brasilianum), were of particular interest.
We did not include calls of elf owls elicited by playback in estimates of abundance.
Estimates of relative abundance for elf owls, lesser nighthawks (Chordeiles acutipennis), and common nighthawks (Chordeiles minor) were calculated over the 3-month sampling period of April June because these species are migratory and were present on Galvan Ranch only during that period.
As they continued through the inky darkness, his guide let out a series of soft barks and squawks, inviting the rare elf owls for a chat.
Ensnared by a cactus, unable to free himself and unwilling to make any noise that might scare away the rare elf owl he had come to photograph, Van Den Brandt waited, hoping his guide would notice Van Den Brandt was no longer trailing him through the dark Sonoran Desert.
Several owl boxes will attract elf owls
and would give you a better chance to see those elusive creatures.
Only once in a while do elf owls manage to catch a mouse or lizard.
One hunting trick of elf owls is to hang upside down in a large agave (uh-GAH-vee) plant and flap their wings against the blossoms.
After the flickers and woodpeckers abandon their nests, the sites are quickly taken over by other birds such as elf owls
, sparrow hawks, and purple martins.
We observed three elf owls that evening, two adults and a juvenile.
Barlow and Johnson (1967) summarized the distributional status of the elf owl (Micrathene whitneyi whitneyi) in the southwestern United States.