Semifinals, Poll 8
Bat Hawk vs Groove-billed Ani
sources under the cut
Bat Hawk (Macheiramphus alcinus)
"Bats are captured by the use of small talons and swallowed whole immediately in flight." - Wikipedia
eBird sightings: 3,086; IUCN Redlist Rating: Least Concern
Other than bats, this hawk will also hunt swallows, swifts, nightjar, and sometimes insects. Almost 50% of their hunts are successful. Their gape, or mouth opening, is the largest of any raptor relative to body size, and is ironically more similar to that of swallows and nightjar. This may be due to their habit of eating on the wing, or as a selective pressure to a limited feeding time- only around 30 minutes at dusk.
Groove-billed Ani (Crotophaga sulcirostris)
"Bizarre, coal-black cuckoos with long floppy tails and unique, curiously tall, flattened bills. Gregarious and not particularly graceful; usually seen crashing around awkwardly in small groups" - eBird
eBird sightings: 262,392; IUCN Redlist Rating: Least Concern
Ani are communal nesters, with each pair creating their own nest before the group as a whole decides which single nest to lay all of their eggs in. Each member will take care of the chicks as if they're their own, and they all take turns incubating. While their genus name 'Crotophaga' means "tick-eater", it was given to them a bit erroneously. Rather than plucking ticks off of animals, as people have assumed, it's more likely the Ani prefer to follow cattle and other grazing animals because of the bugs they scare up.
Images: Hawk (Zak Pohlen); Ani (Cameron Carver)
(the tick story comes from their genus page, Crotophaga)
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[675/10,977] Bat Hawk - Macheiramphus alcinus
Order: Accipitriformes
Family: Accipitridae
Photo credit: Nik Borrow via Macaulay Library
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Round 3, Poll 15
Bat Hawk vs Fiery-billed Aracari
sources under cut
Bat Hawk
“Catches bats in flight and swallows them whole”
Bat Hawk will also capture swallows, swifts, and nightjars to supplement their diet of bats. Almost half of their hunts are successful!
The reason they eat on the wing is that they only really have around 30 minutes to hunt every day. This is also the theory as to why their mouths are so wide- bat hawks have the largest gape to body size ratio of any raptor, seeming almost like a nightjar instead.
Fiery-billed Aracari
These birds typically travel in groups of six or more, groups that sometimes include other toucans. They roost communally, and may pack several birds into the same cavity for sleeping.
A cooperative breeder, sometimes birds from the previous season will return to aid their parents in raising the next brood. While the diet of adult aracari is mostly fruit based, they’ll feed the nestlings mostly insects.
Images: Hawk (Nik Borrow); Aracari (Joshua Vandermeulen)
Birds of the World: both speices
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