This Peregrine (Falco peregrinus)
flew low into a flock of gulls over a tight feeding pack of comororants and pelicans at Braunig Lake, San Antonio, Texas on December 14, 2013:
Here it enters from the top-right; the gulls already have lifted up en-mass but do not scatter, instead staying low to the water:
It makes a jink down over one gull, which dives straight down into the water:
The gulls settle on the water well back from the Peregrine, which makes a slow, low exit to the left (note below that the leftmost flying bird is a Franklin's Gull):
