Wings of birds move fast at takeoff (and in flight) and the smaller the bird the faster they move. This means that photographers must be cognizant of shutter speed if they want any control over the amount of motion blur in their images.
I don’t post images of these two species as often as I should. Both are common in my area and such large birds are relatively easy to photograph in flight so I hope the reason I’ve largely ignored them has nothing to do with snobbishness on my part.