The Red-Footed Falcon — Falco Vespertinus, Linnæus
This species is commonest in Eastern Europe, and is gradually extending its range northwards; it migrates to Africa in winter. Some thirty examples have at long intervals occurred in this country, chiefly in the east and south.
The adult male has the head, throat, breast, and upper parts very dark lead grey; thighs and vent chestnut. The female has the head and nape chestnut; upper parts slate grey, with darker bars; under parts pale chestnut. Length 11·5 in.; wing 9·7 in.