2. New World chat, chat -- (birds having a chattering call)
3. Old World chat, chat -- (songbirds having a chattering call)
Overview of verb chat
The verb chat has 1 sense (first 1 from tagged texts)
1. (2) chew the fat, shoot the breeze, chat, confabulate, confab, chitchat, chatter, chaffer, natter, gossip, jaw, claver, visit -- (talk socially without exchanging too much information; "the men were sitting in the cafe and shooting the breeze")