Scott,

Here's the local website that monitors the Swainson migration with some much better pics and info:

http://borregohawkwatch.blogspot.com


They're pretty birds, not as big as redtails, but good-sized. They spool up in "kettles" in the morning, mixing with turkey vultures, and then head up the mountain valleys on their way northward to their breeding grounds.

Regards,
Scott