jimmiec
A
House Wrens are aggressive. Male House Wrens start building several nests at once in hopes of persuading a female to mate with him. In this process they will destroy and/or discard the Blue Bird eggs. I manage 10 Blue Bird boxes on my private property and witness this behavior every year.
10:30 AM - May 03, 2023
Avatar
0
2
2
jimmiec
A
They also destroy the eggs of other House Wrens. Single males compete for females even after a pair has begun nesting. In about half of these contests the outsider succeeds, at which point he usually discards any existing eggs or nestlings and begins a new family with the female. -AAB
In response to jimmiec.
10:32 AM - May 03, 2023
0
0

 

{{ notificationModalContent }} {{ promptModalMessage }}