Despite the lack of overlap in breeding area, these hybrids do exist! We had one
for at least two years in a row on the Palo Alto CBC. Unfortunately, I gave
away my American Birds, but believe it was mid-80's. Alvaro's description sounds
identical.
Clark Blake phone: (360) 650-3595
Department of Geology fax: (360) 650-7302
Western Washington University
Bellingham, WA 98225