[cobirds] Robin + Magpie Interaction - Arapahoe

Five years ago, at the end of the first week of June, I encountered a magpie pair predating a fledgling robin while the robin's parents screeched and hopped, helpless to intervene. 

This morning, I checked out an angry robin at the edge of my Centennial yard. I wanted to ensure we didn't have a neighborhood cat around. The bird's vocalizations were enough to upset both my chickens and a squirrel.

I found not a cat, nor a Cooper's Hawk (my next guess), but a magpie. I figured the magpie was after an egg or a nestling. The robin chased the magpie and I left the scene to unfold how it would unfold.

This evening, when investigating the song of a thrush from the edge of my yard (Merlin says Swainson's, but I need to play it back and confirm) I came face to face with a flightless fledgling robin. So we're past eggs and nestlings, it seems. A quite striking bird, already having lost the odd, downy head feathers.

Best of luck to the robin and the robin parents. Same, too, to the magpies, which have been attending to some noisy young somewhere in a nest in a neighbor's yard.

- Jared Del Rosso

Centennial, CO 

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