The first time I saw these beautiful swallows was a pair mating in the trees, of all things, at the San Joaquin Wildlife Sanctuary in Irvine http://seaandsageaudubon.org/SJWS/sjws.htm. Fortunately, they were not too flighty or wary of humans, so I was able to get some decent photos. The iridescent blue upper parts of these birds is what makes them so striking.
From Stokes Field Guide to Birds:
VOICE: Song, given by male, is 3 descending notes, followed by warble. Cheedeep call is given during alarm.
5/4/02 On a nesting box at the San Joaquin Wildlife Sanctuary in Irvine (Orange County), CA
5/4/02 A pair doing the deed up on a tree at the San Joaquin Wildlife Sanctuary, Irvine, CA
4/24/04 Pair on a nesting box at the Prado Constructed wetlands, San Bernardino County, CA.
We saw this pair while on a guided tour of the wetlands conducted by an Orange County Water District biologist.
4/24/04 2 Barn swallows (on the left) and 3 tree swallows (on the right) at the Prado Constructed wetlands, San Bernardino County, CA. Guided tour of the wetlands conducted by an Orange County Water District biologist.
LIFE LIST NOTES:
COMMON NAME: Tree Swallow
SPECIES: Tachycineta bicolor
COMMON NAME: Tree Swallow
SPECIES: Tachycineta bicolor
COUNT: Numerous
LIFE LIST DATE: 5/4/2002
LIFE LIST DATE: 5/4/2002
LOCATION: San Joaquin Wildlife Sanctuary, Irvine, Orange County, CA
IDENTIFYING MARKS & BEHAVIOR: 6" upper parts iridescent blue; underparts bright white; dark on head encloses white.
VOICE: Song, given by male, is 3 descending notes, followed by warble. Cheedeep call is given during alarm.
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