Citadel is a faithful remake of the original game System Shock created in 1994 by Looking Glass Studios.
This poor person mutated wings and had their eyes pop out sideways! They are not particularly happy about SHODAN experimenting on them and will take out their anger on anyone nearby.
I thought these were Mutated Birds or Bird/Lizard Hybrids.
I don't recall any mention of burds being on the station. Maaaybe in the groves.