114 



THBEE-TOED WOODPECKEK. 



NORTHERN THREE-TOED WOODPECKER. 



PLATE LV. FIG. II. 



Picus tridactylus, ' LINNAEUS. 



Apterus tridactylus, SWAINSON. 



Picoides tridactylus, LACEPEDE. 



A HOLE in a pine tree is the favourite receptacle for the eggs of 

 the Three-toed Woodpecker; and these, four or five in number, are 

 of a brilliant whiteness. 



