Is a white-throated Magpie-jay a Jay?

The white-throated magpie-jay is between 43 to 56 cm (17–22 in) in length and weighs 205 to 213 g (7.2–7.5 oz). The species has a particularly long tail and a slightly curved crest of feathers on the head. The crest is black in the nominate race, but has blue or white margins on the other two subspecies. The nominate race has a white face with a black crown and margin to the face, forming a narrow band around the throat, as well as a small drop below the eye. The black is less extensive in the other subspecies. The breast, belly and underside of the rump are white, and the wings, mantle and tail are blue (with whitish margins on the tail). The legs and eye are black, and the bill is grey. The plumage of the females is mostly as that of the male but duller on the top, with a narrower band across the chest, and the tail is shorter.