On arrival at nest the red tail hawk was feeding the eyas. She then was trying to catch the bugs as they seemed to be bothering her. At one point she started to scream as a gull flew right above the nest and tried to go at the nest. Just before I left the female was feeding the young again.
I don't understand the gull attacking but another worker from the City was watching it also. He said he is there very early and the red tailed hawks like to sit on top of the government building and soar around.