Tweeters,

An hour ago we were watching three pigeons fly across a street in the
Issaquah Highlands. Feathers flew. What kind of a twisted on the
wing mating maneuver is that, thought we. Turns out the three pigeons
were actually one pigeon and two Peregrines. Seems the pigeon
couldn't tell the difference either.

National Geographic describes a Lawrence's Warbler as a backcross
(most often produced by crossing a first-generation hybrid with one of
the parent species.)

Lets see if we have this straight. A Blue-winged Warbler mates out of
its species with a Golden-winged Warbler to produce a nest full of
little hybrid Brewster's Warblers, which by old-school definition are
sterile. One of these Brewster Warbler hybrids becomes involved with
a Blue-winged or Golden-winged Warbler member of the opposite sex, and
nine months later a clutch of Lawrence's Warblers hatch.

Anyone know how all this was figured out?

Larry Schwitters
Issaquah
On May 18, 2009, at 2:19 PM, Whitney wrote:

> The Queen Anne mystery warbler looks to me like a "Lawrence's
> warbler" way out of its normal range. Tough to tell from the photos
> on my computer.
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