Cowbird suggestions

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  • #1510
    Susan Resch
    Participant
    • Topics started 2
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    • Total Posts 5

    Hi all,
    I have had a male and female cowbird hanging around our yard for the last three days. I chase them off whenever I see them. I have BB nesting with 5 eggs as of Friday. Any ideas? Thanks.

    #1525
    tamsea
    Moderator
    • Topics started 26
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    It’s very unlikely that they could fit through your bluebird box hole so I think they are safe. It has happens a few times though. It’s rare.

    Tammy

    #1531
    The Original Bluebird Nut
    Admi-nut-strator
    • Topics started 23
    • Replies 125
    • Total Posts 148

    From Sialis.org:

    Bluebirds: Parasitism in bluebird nestboxes with properly sized holes is not common. Cowbirds occasionally parasitize nests in nestboxes. The female is capable of squeezing through 1.5″ hole, however they probably prefer a larger hole (1.75″ or maybe a Peterson hole). Keith Kridler has found Cowbird eggs right beneath a bluebird nestbox entrance hole, and wonders whether the tight squeeze will sometimes “pop” an egg out of the female as she enters the box.

    Cowbirds are tricky…detailed information on them can be found on the Sialis website.


    Central NY
    TMB Studios

    #1538
    dogsandbirds
    Moderator
    • Topics started 5
    • Replies 655
    • Total Posts 660

    Just keep an eye on the nest, Susan. When is hatch date?

    Gin
    Atlanta, GA

    #1593
    Susan Resch
    Participant
    • Topics started 2
    • Replies 3
    • Total Posts 5

    Hi Everyone,
    The Cowbirds are still around, whenever I see them I turn the garden hose on them hoping that they will move on. We have 5 eggs in the nest and hatching date is around the 27th. I have an additional curious observation….it seems like one of the males from last year’s fledglings is still hanging with the parents. I finally looked at him through my binoculars today and after doing some research he appears to be a second year. I know from reading past posts that this is unusual, however the three of them seem to be getting along just fine. I always appreciate your comments! Susan

    #1595
    tamsea
    Moderator
    • Topics started 26
    • Replies 699
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    That is rare but we hear about it occasionally.

    Tammy

    #1600
    dogsandbirds
    Moderator
    • Topics started 5
    • Replies 655
    • Total Posts 660

    He might help feed the hatchlings. That will be fun for you to watch.

    Gin
    Atlanta, GA

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