As insects come out earlier, birds at this Lake Erie reserve are shrinking

Muzammil Hussain July 03, 2026

Tree swallow sitting in the palm of someone's hand.

New research published in a U.S. science journal found that as the number of insects declines, tree swallows at Long Point Bird Observatory in Ontario have been producing fewer eggs and are shrinking in body size.

New research published in a U.S. science journal found that as the number of insects declines, tree swallows at Long Point Bird Observatory in Ontario have been producing fewer eggs and are shrinking in body size. Tree swallow sitting in the palm of someone's hand.

New research published in a U.S. science journal found that as the number of insects declines, tree swallows at Long Point Bird Observatory in Ontario have been producing fewer eggs and are shrinking in body size.