_Remarks._--The Marianas Crow is confined to the forested areas and to the coconut plantations at Guam. The birds were seen as singles or in small flocks, often along the roadways. In a count of the number of birds seen along the roadways of Guam, the author (1947:124) found crows to constitute 2.4 per cent of the total population of birds counted and observed the crow on 21.6 per cent of the 125 roadway counts made. Coultas (field notes) noted the birds at the northern part of Guam. The NAMRU2 party found the birds distributed in most parts of the island but usually they were infrequent near areas where large numbers of service personnel were stationed. The birds were often noisy when flying in small flocks or in pairs; Seale (1901:55) also notes this. When observed in jungle areas, the birds were generally quiet, feeding and perching in dense foliage. At Rota, the NAMRU2 party found the bird to be fairly numerous and with habits resembling those of the crow at Guam. No differences in color or structure could be found between the specimens of crows obtained at the two islands. Kittlitz (1836:305) was the first person to write an account of the crow at Guam. He called it _Corvus solitarius_ and remarked that he later found the same species in the Philippines. Wiglesworth (1891a:46) also considered the crow at Guam to resemble one found in the Philippines and called it _Corone phillipina_. Later Reichenow named the bird _Corvus kubaryi_ with the type locality as the Palau Islands. This locality proved to be erroneous and the bird was judged to be from Guam by Hartert (1898:59), who did not use the name _C. solitarius_ because it was a _nomen nudum_, and recognized _C. kubaryi_ as the correct name.