Black Hawk-Eagle
Spizaetus tyrannus
Uncommon, spectacular, crested eagle of lowland tropical forest. Most frequently seen soaring in mid-late morning; rarely seen perched. Gives loud, far-carrying whistles while flying, which often indicate its presence. Adult is black overall with bold white checkering under the wings and bold white bands on the tail. Immatures, although rarely seen, are browner with a white throat and crown. The short bushy crest is usually apparent only on perched birds and is not seen in flight.
Identification
The black hawk-eagle is 58–70 cm (23–28 in) long and weighs about 900–1,300 grams (2-2.9 lbs). It has black plumage with varying patterns on its wings and body, and white speckling in places. It has barred wings, slightly elliptical in shape, and a long, narrow tail which is rarely fanned. The four grey bars on the tail are distinctive to the black hawk-eagle, as is the white line seen slightly above the bird's eye. While flying, the broadness and shortness of the wings become apparent. While in flight, the bird's tail is typically kept closed.
Taxonomy
Genus: Spizaetus; Family: Accipitridae; Order: Accipitriformes.
- Scientific name
- Spizaetus tyrannus
- Authority
- (Wied-Neuwied, M, 1820)
- Order
- Accipitriformes
- Family
- Accipitridae
- Genus
- Spizaetus
Range and habitat
- Migration
- Resident species
Behavior
Migration pattern: Resident species.
Conservation
Population trend: declining.
- Population trend
- declining
Photos
Distribution
Bird Calls
Other Birds
Stripe-backed Wren
Campylorhynchus nuchalis
Medium-sized, social black-and-white wren Dull white overall with dark streaking above, black dotting below, and a broad white eyebrow. Wings and tail black barred white; eyes yellowish white. A social species that lives in small and animated groups. Locally common in dry to moist woodlands, gallery forests, parks, and trees in urban areas. Very vocal, mainly in duet, with fast scolding and scratchy notes. No other similar species in range.
Nicaraguan Grackle
Quiscalus nicaraguensis
Long-tailed blackbird, very similar to Great-tailed Grackle but smaller. Male is darker black with less obvious glossiness (but still some, usually greenish); female is very similar to female Great-tailed but paler below. Extremely limited range in the vicinity of Lake Nicaragua and Lake Managua, where small flocks can be found in open grasslands and wetlands.
Verreaux's Batis
Batis minima
A very small and striking gray, white, and black flycatcher-like bird with a very dark crown, a yellow eye, white wingbars, and a white spot above the bill base. Sexes differ: male’s chest band is broad and black, while female’s is gray. Juvenile has a rusty-tinged breast. Pairs are rare and localized residents in secondary forest, forest edge, and plantations. Calls include a series of 5–20 thin short high-pitched “seeet” notes on the same pitch, faster and more monotonous than similar sounds of other batises. Verreaux’s Batis is smaller and has a cleaner, thinner song than West African Batis. Female Verreaux’s also has a gray rather than chestnut breast band.
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