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Adult Red-tailed Tropic bird and Chick 
This is an adult Red-tailed Tropicbird with its chick in the nesting hol- 
low under a rock ledge. The dark spot on the adult’s head shows that it 
has been banded. Since both parents may be found brooding the chick in 
this species, the POBSP, when banding, marks the banded parent. When the 
unbanded parent arrives, it is conspicuous because of its unmarked fore- 
head, and can easily be singled out for banding. Photo by R. Clapp. 
