sand martin

US /sænd ˈmɑːr.tɪn/
UK /sænd ˈmɑːr.tɪn/
"sand martin" picture
1.

rondine riparia

a small, brown migratory bird of the swallow family, typically nesting in tunnels dug into sandy banks.

:
We watched the sand martins darting over the river.
Abbiamo osservato le rondini riparie sfrecciare sul fiume.
The cliff face was dotted with the nests of sand martins.
La parete della scogliera era punteggiata dai nidi di rondini riparie.