Barn Owl In Flight Showing Dorsal Plumage Patterns and Alulae
Barn Owls have rather intricate plumage patterns and interesting color gradations on their dorsal (back) surfaces but they are rarely seen in their entirety in a single image. That’s partly because to get such an image you need to get them in flight with their wings out and tail spread which is very difficult to do since they’re primarily nocturnal. And when you do manage a flight shot of one you’re usually looking up at them and can’t see much, if any, of the dorsal surface. I thought this image fit the bill. especially with the bird looking down so that we can also see the colors and patterns on the top of the head. Yes, I do wish I had more light in the eye… 1/1600. f/8, ISO 500 500 f/4, 1.4 tc, natural light, canvas added for composition, not baited, set up or called in Another thing I like about the image is the clear look at the alulae (plural of alula) or “bastard wings – the first digit or “thumb” on the leading edge of the wing. And this shot shows one more thing that intrigues me – the right alula (left in our view) is extended further forward and at a sharper angle than the one on the birds left, perhaps in compensation for the tipped angle of flight. My research indicates that there’s still debate among experts about whether or not birds have muscular control of the alulae or they only respond to the pressure of air currents. This owl has just spotted potential prey below and is flying very slowly as…