Beautiful wing pattern

No, it's not a Black-crowned Night-heron - but I don't know what it is yet! Unless it's a juvenile? Yes, I think it is. Yes, it is! Posted only because I love the wing feather pattern.

I didn't know I'd even caught a bird when I clicked as fast as I could this afternoon. Amazingly, I just got this Black-crowned Night Heron before it flew out of the picture. The weather forecast warned about thunderstorms this afternoon, but, as this seems to occur on an almost daily basis, I decided to risk it and drive south to Frank Lake. Takes about 35 minutes from the southern edge of Calgary to reach this popular location for birders (and for people walking their dog!). It was deserted when I arrived, which always makes me feel a little uncomfortable. I walked along the boardwalk to the blind and about two feet from it, suddenly there was a bit of a commotion overhead and this Black-Crowned Night-heron flew over, followed by several White-faced Ibis. I swung around with my camera, completely forgetting that there is a warning sign about the deep water on either side. It would be so easy to lose ones balance, which I'm usually conscious about. I didn't see the heron again, but I did see six or eight Ibis circling in the distance several times. The water level is high and the Ibis were not to be seen where I've seen them before. Useless for photos, though I might pick out the "best" one to post later.