barn swallow
grrlscientist | September 21, 2009tags: Barn Swallow, Hirundo rustica, birds, mystery bird, bird ID quiz
[Mystery bird] Barn Swallow, Hirundo rustica, photographed at Bob Road, Bolivar Peninsula, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 4 August 2009 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/500s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
Review all mystery birds to date.
grrlscientist | January 22, 2009tags: Cave Swallow, Petrochelidon fulva, Barn Swallow, Hirundo rustica, birds, mystery bird, bird ID quiz
[Mystery bird] Cave Swallow, Petrochelidon fulva (L) and Barn Swallow, Hirundo rustica (R), photographed at Smith Point, Texas. [I will identify these birds for you tomorrow]
Image: Joseph Kennedy, 24 October 2008 [larger view].
Nikon D200, Kowa 883 telescope TSN-PZ camera eyepiece 1/640s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
Review all mystery birds to date.
bleimanb | June 11, 2008A new study of barn swallows has shed fascinating light on the link between appearance and the levels of sexual hormones in their bodies. Scientists have long noted that male swallows with deeper red throats attract more females and have higher levels of testosterone. Conventional wisdom assumed that swallows born with more testosterone had deeper throats and thus attracted more females. Turns out, however, that this is only partially true.
Who's the private dick who's the sex machine with all the chicks?....Artificially painted barn swallow! Awwwwwww yeah.
University of Colorado, Boulder…