How blue can blue be? I think Mountain Bluebird (Sialia currucoides) males are a wonderful example of just how blue a bird can be.
I photographed the Mountain Bluebird male while camping last year at one of my favorite locations, Red Rock Lakes National Wildlife Refuge. All along the rough dirt roads in the refuge Mountain Bluebirds can be seen flitting about, perching on old fence posts and fighting with Tree Swallows for nest boxes. Because the Bluebirds are not used to many people being around they are very skittish and I always feel great about getting close enough to get acceptable images.
Mountain Bluebirds have begun their migration north, it won’t be long before they will be in the Centennial Valley again.