<p>
The Gray Flycatcher breeds in mostly in western U.S. and winters in Mexico.
The Gray Flycatcher is a rare visitor to the S.F. Bay Area.
It was spotted in a park in the East Bay hills.
Quite a few birdwatchers came to see it.
The best way to identify these birds is that they wag their tail
downward.
</p>
<p>
They mostly eat insects and other small invertebrates.
</p>