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Birders

Donkees

(32,437 posts)

2. One possibility:

Reply to BlueKota (Original post)

Fri Apr 26, 2024, 11:57 AM

Apr 2024

Arcese and coworkers (1992, 1996) speculated that cowbirds will destroy nest contents late in the nesting cycle to induce hosts to re-nest, thus enabling the cowbird to synchronize their egg laying with that of the re-nesting host. Cowbirds also may disrupt nests in the vicinity of their hosts' nests to reduce competition for the cowbird nestling's food (Granfors et al. 2001)

If the finches relocate too close to where these cowbirds have laid their egg, they might have the same problem. You would have to watch too if cowbirds succeed in laying an egg in your porch nest.

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BlueKota

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Highlight:

There are a pair of finches who buid a nest on top of a decorative column on my porch every spring [View all] BlueKota Apr 2024 OP

my mom has had robins on light fixture right next to door every year. We just leave riversedge Apr 2024 #1

One possibility: Donkees Apr 2024 #2

Thank you! BlueKota Apr 2024 #3