Swallow populations are fluctuating as the environment changes. In 2016, the Alaska Songbird Institute began studying changes in swallow populations and formed the Alaska Swallow Monitoring Network. This is an opportunity for participation for community members to participate in a structured monitoring program.

Unusual swallow species

6-3-13 Erosion disrupts swallows - Evansville, Alaska, USA

The swallow that makes the biggest dent in insect populations in these parts is the cliff swallow. These birds can nest in colonies of several thousand given the right conditions. The largest group of swallows I’m personally aware of is on the middle Porcupine River, where the cliffs of impressive Howling Dog Canyon host at least 4,000 swallows.