American cliff swallow
nounDefinitions
Petrochelidon pyrrhonota, a member of the passerine bird family Hirundinidae.
- Researchers in the US found that the wingspan of American cliff swallows, which took up the habit of colonising concrete highway bridges in the 1980s, had decreased by about two millimetres a decade since then.
The neighborhood
Vish — recursive loop
No curated loop yet for American cliff swallow. Loops are being traced one word at a time while the ingestion pipeline matures.
sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA