sounds birds use to communicate
An eastern towhee (Pipilo erythrophthalmus) singing, Jamaica Bay Wildlife Refuge, United States Blackbird song
Bird vocalization includes both bird calls and bird songs. In non-technical use, bird songs (often simply birdsong) are the sounds produced by birds that are melodious to the human ear. In ornithology and birding, songs (relatively complex vocalizations) are distinguished by function from calls (relatively simple vocalizations).
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).