38 



NORTH AMERICAN HERONS AND THEIR ALLIES. 



Merida, Venezuela, to the Canal Zone, Panama, and also winters in 

 this region and on the islands off the north coast of Venezuela. 



Lower California Great Blue Heron. Ardea herodias sanctilucae Thayer and 



Bangs. 



The name sanctilucae applies to the birds of the Cape region of 

 Lower California, where they have been found breeding on San 

 Jose and Espiritu Santo Islands and wintering south to San Jose 

 del Cabo. 



Galapagos Great Blue Heron. Ardea herodias cognata Bangs. 

 Eestricted to the Galapagos Islands, where it is a constant resident. 

 Migration and breeding of the Great Blue Heron and its subspecies. 



The following records of migration and breeding are not separated 

 according to subspecies, but it is easy to tell from the preceding 

 statements of range which particular form is intended/ 



Spring migration. 



