bird in the British Museum, exhibit very clearly the differences existing between this 
species and P. erythrogastra. 
My thanks are due to Prof. Steere for kindly lending me the type, now the property of 
the University of Michigan, and to Dr. Sharpe, of the British Museum, for the specimen 
of the young, in order that the portraits of the birds in the two stages of plumage could 
be introduced into this work. 
