Pygochelidon is a genus of birds in the swallow family Hirundinidae that occur in the Neotropics.
Pygochelidon is a genus of birds in the swallow family Hirundinidae that occur in the Neotropics.
==Taxonomy== The genus Pygochelidon was introduced in 1865 by the American naturalist Spencer Fullerton Baird with the blue-and-white swallow as the type species. The name combines the Ancient Greek pugē meaning "rump" with khelidōn meaning "swallow".
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).