House SparrowsVideo of the Month - ESTP (possibly hybrid) Attacking Bluebird - GRAPHIC

Video of the Month – ESTP (possibly hybrid) Attacking Bluebird – GRAPHIC

The “common knowledge” about Eurasian Tree Sparrows (ETSP) is that they are not aggressive like House Sparrows (HOSP.) However, In January 2024, I saw a nestcam video by Katharine Martin of St. Charles, MO, of an ETSP attacking a bluebird and it was VICIOUS. The bluebird exited the box, but it’s unknown if it survived as the box was not nearby.  I wonder the attacker was a hybrid, but it was clearly mostly ETSP.  WARNING: It is brutal, and the bluebird’s cries are upsetting.

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When it comes to bluebirding, if you think you’ve seen it all, you’re probably wrong.
– Bet Zimmerman

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