Date: 11/28/25 7:16 am From: William Flack via groups.io <sparvophile...> Subject: Re: [NEBirds] Apparent nest hole....
According to the account at "Birds of the World", Black-capped Chickadee nest sites "range from ground level to more than 20 m high; most commonly between 1.5 and 7 m".
BotW cites two studies for Downy Woodpecker: in Virginia, nest height averaged 4.7–4.9 m (forested vs. nonforested areas) with no standard deviation given; in Iowa, nest height averaged 6.1m ±3.1m. I couldn't find nest-height figures for Red-bellied Woodpecker. For Red-headed Woodpecker, they give a figure of "2–24.5 m above ground, typically 7–12.4 m". For Northern Flicker, nest-cavity heights in Iowa are reported as 8.1m ±3.2m. Given these numbers, it seems unlikely that this is a woodpecker nest.
