Fig. 2.

(a) One barn swallow nest built on the veranda of a building in Alley 3, Lane 8, Heshun Street, Nangang, Taipei. (b) A Taiwan whistling thrush (pointed by the upper red arrow) was preying on barn swallow chicks from a nest while one barn swallow (pointed by the down red arrow) are mobbing it. (c) The Taiwan whistling thrush was holding a barn swallow chick. It killed the chick by throwing it to the floor and then ate it. The process lasted less than one minute and it continued to attach other chicks after this one. The photograph in (a) was taken by Jhih-Syuan Wang and those in (b) and (c) were taken by Chun-Liang Yu.