Barn swallow
May 23, 2021, Rondeau Provincial Park, Ontario, Canada.
Taken in our yard. It took about 3 days for the local robins and barn swallows to strip every bit off moss.
from the stream edges for nest building.
Hirundo rustica
Swallows often cruise low, flying just a few inches above the ground or water. True to their name, they build their cup-shaped mud nests almost exclusively on human-made structures.
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