acquired autumnal plumage, one a female in nuptial plumage (this specimen has some faint indications of white bars on some of the scapulars as well), and one is a young male. Another spring female has some white bars on the scapulars but none on the rump. Presumably this is a tendency toward the Mexican species _Dryobates stricklandi_. _Food._--Very little seems to be recorded on the food of the Arizona woodpecker, which probably does not differ greatly from that of other members of the _Dryobates_ group. It apparently feeds mainly on insects and their larvae, but to some extent on fruits and acorns. Mr. Henshaw (1875) says of its feeding habits: “When in pursuit of food, they almost always alighted near the base of the trees, gradually ascending, and making their way along the smaller limbs, and even out among the foliage, appearing to prefer to secure their food by a careful search rather than by the hard labor of cutting into the wood in the way the hairy woodpecker employs its strength.” _Behavior._--The same observer says of their habits: Here they appeared to be perfectly at home, climbing over the trunks of the oaks with the same ease and rapidity of movement that distinguish the motions of the downy or hairy woodpecker; though their habits, in so far as they are at all peculiar, are, perhaps, best comparable to those of the red-cockaded woodpecker of the South (_P. borealis_), especially their custom of moving about in small companies of from five to fifteen, though they were occasionally found singly or in pairs. * * * I found them at all times rather shy, and gifted with very little of that prying curiosity which is seen in some of the better known species of this family; and if by chance I surprised a band feeding among the low trees, a sharp warning note, from some member more watchful than the rest, communicated alarm to the whole assembly, when they took flight immediately, showing great dexterity in dodging behind trunks and limbs, and making good their retreat by short flights from one tree to another till they were out of sight. In the Whetstone Mountains, Ariz., Austin Paul Smith (1908) observed a female Arizona woodpecker--