Larry Cowan has been birding for 30 years, including nearly 20 years where he lives in Pitt Meadows, B.C., about 38 kilometres east of Vancouver. In that time, Cowan says he’s noticed a decline in cliff swallow sightings.
So in 2019, he was pleased to see the birds, which are protected under the federal Migratory Birds Convention Act, building a colony of nests in the observation tower in Grant Narrows Regional Park at Pitt Lake. Unfortunately, the nests were destroyed that summer, and it took four years for the swallows to try to establish their colony again at the park.
This year, Cowan saw the cliff swallows were back, building their mud nests
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