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THREE-TOED WOODPECKER. 
NORTHERN THREE-TOED WOODPECKER. 
PLATE LV.—FIG. II. 
Picus tridactylus, : : . . Linyevs. 
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. 
