At first when I spotted this Blue Jay fly up to this nest, I assumed the nest belonged to it and it was setting up housekeeping for the winter. I watched it perch itself around the twigs of the nest as it was bobbing its head in and out of the nest. When the Blue Jay finally looked up, I was surprised to see it had an egg in between its beak. That is when I knew the nest did not belong to it and it was going after the eggs in this nest. I did not know Blue Jays eat other bird’s eggs. I researched what Blue Jays eat and learned they have been known to occasionally eat eggs, however, this is not a common feeding habit for them. I guess this was a lucky photo op, (not so lucky for that baby bird egg), to witness this uncommon feeding behavior by a Blue Jay.
Blue Jays are known to take and eat eggs and nestlings of other birds, but we don’t know how common this is. In an extensive study of Blue Jay feeding habits, only 1% of jays had evidence of eggs or birds in their stomachs. Most of their diet was composed of insects and nuts. – Allaboutbirds.com