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Deerfield, OH, USA


I have a bluebird nest box with a 2 inch hole that I found this unidentified bird. I thought it was an American kestrell but they don’t add material and this nest has some long grass stocks with a cup made of all black feathers. Can anyone tell me what this nest is? I’m about to get a game camera to post nearby to help find the identification of the bird but thought I would ask this community first.


Nests in boxes




10 responses to “UNKNOWN NEST FOUND”

  1. Texas Bird Family says:

    Hmm, my guess would be House Sparrow. I thought maybe a chickadee but the feathers.

    • Darrell Gammon says:

      Thanks for your thought but, this nest is not woven circular like a house sparrow, but black feathers are in a cup formation, that’s why I was think not a HS. I’m thinking of buying a game camera to mount nearby the box.

  2. Caleb Koser says:

    Tree swallow??

    • Darrell Gammon says:

      Can’t be a tree swallow ’cause the eggs are speckled and swallows are white plus these are larger than swallow eggs

      • Ava says:

        I think the most likely explanation is that the nest is a Tree Swallow’s nest but the eggs are Brown-Headed Cowbird eggs.

        • Texas Bird Family says:

          Even if they are do NOT remove them. To do so is a prison-worthy crime of up to 1 year. Cowbirds are protected by the migratory bird treaty.

  3. Texas Bird Family says:

    Also, please don’t put your fingers on the nest. It is illegally protected.

  4. Texas Bird Family says:

    Sorry, I meant legally

  5. Holly Grant, Project Assistant says:

    Hey folks, this is a House Sparrow nest. House Sparrow nests are quite messy and there’s often variation between individuals (not all will have a neatly woven cup). They use all kinds of materials, such as dried vegetation, feathers, string, and paper. Their eggs are indeed a bluish-green with the brown or gray spotting – similar to a cowbird which can make it difficult to identify, but it’s somewhat uncommon to find a nest with only cowbird eggs inside. American Kestrels are much larger birds, and need a larger box with an entrance hole of at least 3-4 inches in diameter; their eggs are brownish, round, and much larger than songbird eggs.

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