382 



TETRAONID^. 



I believe, with M. Temminck and Mr. Henry Double- 

 day, that the Ptarmigan figured by Mr. Gould and Mr. 

 Eyton under the name of rupestris, is the female of our 

 common Ptarmigan in her summer plumage. 



In our three representations of the Ptarmigan, at the 

 head of this subject, the lower figure is taken from a 

 female killed in the month of May, the upper figure from 

 a male killed in October, and the middle figure from a 

 male bird killed in January. 



