Ye Gong, Nehafta Bibi and Haitao Wang*
...r by Mandarin ducks, all heterospecific eggs were rejected and four clutches were incubated successfully. For the other mixed clutches, none of Mandarin duck eggs were removed, only two eggs were hatched but the ducklings did not survive. Nest usurpation may interfere with normal breeding activities and lead to a reduced breeding success in Mandarin duck and other coexisting bird species, which should be taken into account when providing nest boxes to protect ...
