North American bank swallows have colonies that can contain from 10 to 2,000 nests on natural bluffs, and eroding bank streams. (Kathleen Woodford photos)
June 27, 2018
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June 27, 2018 4 a.m.
Bank swallows populate area stream banks, bluffs
The skies are full of birds this time of year - swooping and diving as they catch insects for themselves and their hungry babies that fill nests throughout the mountains.