ON THE COLYMBUS IMMER. ^3f 



From thus having ascertained that the Colym- 

 bus Immer can fly, and that it is regular in its 

 disappearance from Zetland in the breeding sea- 

 son, we can easily reconcile the apparently opposite 

 statements given by ornithologists respecting the 

 diversity of situation in which it has been said to 

 Jiave been met with. 



