The webcam is courtesy of the Upper Mississippi River National Wildlife Refuge, and a post at Audubon explains just how unusual the situation is.
Males are typically territorial when it comes to breeding, making it highly unusual for two of them to wind up in such close proximity.
But not only have Valor I and Valor II done so, they’re cooperating with female Starr in parenting the chicks. More than cooperating, actually: Both are copulating with Starr.
It gets even more unusual: This is the second female the two males have shared a nest with—the first one, Hope, died a few years ago.
“Why and how the two males tolerate one another isn’t known, nor is the parentage of the chicks,” notes the Audubon post. “But the young are certainly benefitting from the extra set of eyes and talons keeping watch and taking care.”