In Central and most of South
America...southern birds migrate.
Pygochelidon cyanoleuca
(L 4.5-4.75" Wt 0.4 oz)
Intervales State Park
10Oct2017
Pygochelidon in Greek means rump-swallow; cyanoleuca in
Greek means dark blue.
The first robin, the first bluebird, the
first song sparrow, the first phoebe, the
first swallow, is an event we mention to
our neighbor, or write in our letters to
our friends.
(John Burroughs)