Black-capped Swallow Atticora pileata

Small swallow, rather local in high mountains; found around towns and villages and in pine-oak forests and clearings. Flight fast and “twinkling,” from low over treetops to fairly high overhead; at times perches on wires. Appears dark overall with a big white belly patch and a distinctive, long forked tail. Black cap is slightly darker than rest of head, but rarely noticeable.