Segregation, apartheid, racism, indifference, whatever you name it, are common attitudes amongst animal races. Some rare examples of intelligent cohabitation might exist with pets sharing the same place, with farm animals and, I suppose, sometimes wildlife. But generally, it's "everyone for himself". That's what came immediately to my mind when I catched this scene where cormorans and gulls seem to ignore each other!
Taken from the Seine river bank. Birds are on one of the remaining piles from the old stone bridge.
Sunshine from behind, low on the horizon. Converted to b/w, brightness (+25) and contrast (+20) added on PSE. Sharpened.
Tech: I added the 1,7 X Sony teleconverter here on the original Zeiss lens (5X). All together, it corresponds to a 300 mm classical tele.