Cuban Blackbird
Ptiloxena atroviolacea
The Cuban blackbird is 25 to 28 cm (10 to 11 in) long and weighs 70 to 94 g (2.5 to 3.3 oz). The sexes have almost the same plumage. Adult males are entirely black with bluish and purple iridescence on their upperparts and a greenish sheen on the wings and uppertail coverts. Females are also black but have less iridescence than males. Both sexes have a dark brown iris, a black bill, and black legs and feet. Juveniles are a duller, non-glossy, brownish black. Voice: The Cuban blackbird has a "ast variety of calls; most typical is loud, repetitive tí-o, with metallic tone". This vocalization is also described as a song and written as "metallic twee-o and twee-te-to notes". Another common vocalization is " a chok, chok, chok, lee, lee, lee".
ID text from Wikipedia, CC BY-SA 4.0
Unicolored Blackbird
Agelasticus cyanopus
The unicolored blackbird is about 18 to 21 cm (7.1 to 8.3 in) long. Males weigh an average of 40.6 g (1.4 oz) and females average 37.4 g (1.3 oz). The species is sexually dimorphic. Adult males of all four subspecies are entirely black with a faint bluish gloss. Adult females of the nominate subspecies A. c. cyanopus have a brown crown, a thin yellowish supercilium, and blackish ear coverts. Their upperparts are brown with heavy black streaks. Their upperwing is brownish with rufous edges on most feathers. Their tail is blackish. Voice: Both sexes of the unicolored blackbird are thought to sing, an "alternating liquid shr-r-le rattles with series of repeated warbles or trills (wie-wie-wie-wie, chie-chie-chee, etc.". The species, contact call is chieg.
ID text from Wikipedia, CC BY-SA 4.0
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