[EBB Sightings] tricolored blackbirds?

Around 4 PM on March 16th around the 7-mile post on Puerto Del Canyon
Road (still in Stanislaus County), amidst a mixed flock (100?) of
redwinged blackbirds, brewer's blackbirds, and starlings, I spotted
extremely white median covert bars on at least 6 blackbirds taking
flight (and separating off) from the other birds working around the
grazing cattle in the open pasture on the NE side of the road.
Peter Boffey
Pacific Coast Seed, Inc.
Tel. 925-373-4417 ext. 1603
Fax  925 373 6855
peterb at pcseed.com