Boat-tailed Grackle
Quiscalus major
The male boat-tailed grackle is 37–43 cm (15–17 in) long and weighs 165–250 g (5.8–8.8 oz). Adult males have entirely iridescent black plumage, a long dark bill, a pale yellowish or brown iris, and a long keel-shaped tail. The adult female is much smaller at 26–33 cm (10–13 in) long and a weight of 90–115 g (3.2–4.1 oz). She is also distinguished by her shorter tail and tawny-brown coloration, which covers the body apart from the darker wings and tail. The wingspan in adult birds is 39–50 cm (15–20 in). In standard measurements, this species measures 13–20 cm (5.1–7. Voice: Its song is a harsh jeeb, and it has a variety of typically grackle-like chatters and squeaks. Their call lacks of whistles and clucks typical of the great-tailed grackle.
ID text from Wikipedia, CC BY-SA 4.0
Greater Antillean Grackle
Quiscalus niger
The Greater Antillean grackle is 25 to 30 cm (9.8 to 12 in) long. Males weigh about 67 to 100 g (2.4 to 3.5 oz) except those of Q. n. crassirostris which average 112 g (4.0 oz). Females weigh about 50 to 72 g (1.8 to 2.5 oz) except those of Q. n. crassirostris which average 79 g (2.8 oz). Males have a long graduated tail which it holds in a "V" shape; females' tails are shorter and held flat. Adults of both sexes of all subspecies are entirely black; males are glossy and most females are less so. The nominate subspecies Q. n. niger is the smallest. Voice: The Greater Antillean grackle's song varies greatly among the subspecies "but (for a grackle) is relatively musical". Songs have been described as "a metallic cling-cling-cling and flute-like whistles". Its calls include "chuk or chuk-chuk or chin-chin-chilin high wee-si-si and harsh notes".
ID text from Wikipedia, CC BY-SA 4.0
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