Melodious Blackbird
Dives dives
Fairly common in semi-open habitats of tropical lowlands, usually in pairs or small groups. Feeds on the ground and in trees, often flipping its tail sharply upwards; may associate loosely with grackles, but usually not mixed in with other blackbids. Distinctive but lacks obvious field marks: plumage is wholly black with a slight velvety sheen; note the sharply pointed bill, and dark eyes.
Identification
The adult is a medium-sized blackbird with a rounded tail. The male is 25.5 cm (10.0 in) long and weighs 108 g (3.8 oz). The slightly smaller female is 23 cm (9.1 in) long and weighs 95 g (3.4 oz). The adult plumage is entirely black with a bluish gloss, and the bill, legs and feet are also black. The iris is brown. Females are identically plumaged to the males; young birds are brownish black and lack iridescence. There are no subspecies.<p>The song is a duet between pairs, with a see note, followed by a whit and a northern cardinal-like whistle. The call is a metallic puitt.
Taxonomy
- Scientific name
- Dives dives
- Authority
- (Deppe, 1830)
- Order
- Passeriformes
- Family
- Icteridae
- Genus
- Dives
Range and habitat
D. dives is a resident breeder from coastal eastern and south-eastern Mexico to Costa Rica. Its range is expanding. El Salvador was colonized in the 1950s, and eastern Guatemala in the 1960s. Prior to 1989 there was only one Costa Rican record, but it is now easily seen at least as far south as San José, and it is expected to colonize Panama.<p>The melodious blackbird inhabits a wide range of habitats, but avoids dense forest and thick undergrowth. It has adapted to human habitation and can be seen in gardens and on lawns. The melodious blackbird forages mainly on the ground for insects but will also take nectar and ripening maize ears as well as other plants, such as the fruits of the gumbo-limbo (Bursera simaruba) and Trophis racemosa.
- Migration
- Resident species
Behavior
Breeding birds are highly territorial, and adults will attack predators like the brown jay, but small flocks form outside the nesting season. A breeding pair will give a display in which each bird spreads its tail, extends its wings, and ruffles its plumage.<p>Both sexes build a cup nest of plant material 3–7 m (9.8–23.0 ft) high in a bush or tree and line it with mud and dung. The female lays three or four brown-blotched blue eggs, which she incubates alone, although the male helps with feeding the chicks. This species is not known to be parasitised by cowbirds, which presumably has also contributed to its success.
Conservation
- Population trend
- rising
Photos
Distribution
Bird Calls
Other Birds
Hispaniolan Oriole
Icterus dominicensis
A sleek forest bird that sometimes ventures into gardens and parks in search of flowers and fruit; prefers areas with palms. The adult is distinctive—clothed in black except for patches of yellow on lower belly, shoulders, and rump. No similar species occur within its range. Immatures are muddled yellow, orange, and olive, developing adult plumage over the course of a year. This plumage resembles that of female and young Baltimore Orioles, a scarce migrant and winter visitor to Hispaniola. Similarly attired Baltimore Orioles can be distinguished by their orange underparts and white wingbars. The song is a rapid jumble of squeaky and metallic notes. Calls include a buzzy “jrrrt” and a metallic “zhwee.”
Neumann's Warbler
Hemitesia neumanni
Unusual short-tailed and big-headed warbler. The most obvious marks are the bold black, white, and olive-green stripes on the head. Found in the understory of middle-elevation montane forest, usually in thick, wet areas, as along streams. Most often detected by voice: a sequence of three whistles, “tseew tsee-tyout.” Most similar to Green Hylia, but much shorter-tailed.
Knobbed Hornbill
Rhyticeros cassidix
A huge black hornbill with a prominent knob on the bill, conspicuous red “gills” on the sides of the beak, a turquoise-blue throat pouch, and a white tail. Males have a red casque and rufous neck, females a yellow knob and black neck. Juveniles resemble male, but with an entirely yellow casqueless bill. Found in pairs or groups in canopy of forested and wooded areas of lowlands and hills. Larger and more colorful than Sulawesi Hornbill. Gives powerful, short “krok” notes and a more drawn-out “oooo-aa-ooo-aaa.”
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