A group of nine birders from Ontario and NY found a SLATY-BACKED GULL just
before noon today. We had a lengthy study of it perched and doing short
flights, seeing all of the field marks. It was too distant for flight shots
but we got some digiscoped images of it while perched. It appears to be
A group of nine birders from Ontario and NY found a SLATY-BACKED GULL just
before noon today. We had a lengthy study of it perched and doing short
flights, seeing all of the field marks. It was too distant for flight shots
but we got some digiscoped images of it while perched. It appears to be
