American Kestrel (Falco sparverius) Science Article 19
During 1983 and 1984 one adult member of 20 pairs of breeding kestrels was removedfrom the wild during the third week of incubation. We measured several variables, e.g., relative prey abundance, female body condition, territory size, amount of adjacent habitat, and time of removal at each experimental territory. There was no relationship between the date of a removal and the probability of a lost mate being replaced, however, only pairs in which a replacement mate was found early in the season subsequently laid a clutch.
REED BOWMAN AND DAVID M. BIRD, The Condor 88:440-445