Sea Gull. Sea gulls are birds about the size of pigeons. They have long wings, which they use to swoop and soar gracefully on air currents. Gulls gather in flocks near bodies of water. They are scavengers who eat garbage as well as fish and insects. Sea gulls are mentioned only in some translations of the Bible. Others translate the Hebrew term as cuckoo, sea mew, or owl (Lev. 11:16; Deut. 14:15).