EXPLANATION OF PLATE. 



Fig. 1. — The alarm (page 35). Both are in the attitude of alarm; but 

 tlie more extreme in attitude is the adult bird, distinguished by the black 

 half-ring on the uecli. 



Fig. 2. — The charge (page 42). Male. 



Fig. 3. The perch coo (page 47). The bird that is cooing is an adult male. 

 The other bird is a young one. 



Fig. 4. — The nest-call (page 51). The bird with its head down in the nest 

 is a male, nest-calling to the other bird, which is a female. 



Figs. 5 and 6. — The bowing-coo (l^age 48). Fig. 5 and Fig. 6 both show 

 the same bird (an adult male) in a phase of the bowing-coo. Fig. 5 showing 

 the up phase, and Fig. G the down phase. The bird is bowing-and-cooing to 

 his own image in a large mirror which was placed close against the end of 

 the cage for the purpose of getting these photographs. 



