hammerhead


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hammerhead,

common name for a heavy-looking, heronlike bird, Scopus umbretta. Its plumage is brown with light and dark glossy, purplish streaks on the wings and body. It has short legs, partially webbed feet, and a heavy, wide, moderately long, black bill. Its stiff, backward-pointing crest, along with its peculiar bill, give its head a hammer-shaped appearance. Both sexes are similarly arrayed. Long-winged and long-tailed, the hammerhead, or hammerkop (as it is called in Africa), may reach a body length of 20 in. (51 cm). It is an inhabitant of the marshes and mangrove swamps of southern Arabia, Africa, and Madagascar, where it feeds primarily on aquatic animals, such as water insects, small fish, and amphibians. It often perches on the back of hippopotamuses, searching for frogs. Hammerheads reside singly, in pairs, or in small flocks, near water and seldom far from trees, in the forks of which they build intricate domed nests, some 3 to 6 ft (91.5–183 cm) or more in diameter. The nests, to which the birds return each year, are complex, three-compartmented structures, lined with mud and dung, and ornamented outside with bright-colored objects. The female lays a clutch of three to six white eggs. Both sexes care for the highly dependent young. According to native superstitions, hammerheads are evil omens, and it is considered bad luck to harm them. Such superstitions have kept the birds somewhat protected. Hammerheads are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Aves, order Ciconiiformes, family Scopidae.

hammerhead

[′ham·ər‚hed]
(design engineering)
The striking part of a hammer.

hammerhead

1. any shark of the genus Sphyrna and family Sphyrnidae, having a flattened hammer-shaped head
2. a heavily built tropical African wading bird, Scopus umbretta, related to the herons, having a dark plumage and a long backward-pointing crest: family Scopidae, order Ciconiiformes
3. a large African fruit bat, Hypsignathus monstrosus, with a large square head and hammer-shaped muzzle
References in periodicals archive ?
This means more awareness is needed on the value of the species, as well as the laws that protect the hammerhead.
Peter Longstaff, Managing Director of QinetiQ Target Systems, said: The Hammerhead is continually proving to be a cost effective and high performing surface target for the RCN and several other customers around the world.
The Texas division was a part of the competition for years, but it will go down in the record books for having caught the biggest hammerhead shark.
The smooth hammerhead shark was easily identified by the following key diagnostic features: head arched with four notches and without a median indentation; first dorsal fin moderately high, with second dorsal and pelvic fins low; pelvic fins not falcate; and lower caudal fin lobe without a dark blotch on it.
As well as launching its first consumer title, survival horror game Syren, Hammerhead has produced commercial projects for Jaguar, HSBC, VW, IBM, and Lexus.
It stated the whale shark and widehead hammerhead shark populations were being rapidly put at risk due to overfishing.
If a hammerhead is hooked from the boat, Hammerschlag advises chasing the fish down to recover line, and then cutting the line or leader as close as practical.
No one was really doing shapes at the time, and the Hammerhead really set that momentum going because it was so revolutionary.
454 using a 365 grain Hard Cast Hammerhead Gas Check rated at 1,350 fps.
Josh Hood, HammerHead HDD product manager, said the R600 opens up new possibilities for the horizontal driller.
Hammerhead manufactures gasoline powered go-karts, light utility vehicles, and electric utility vehicles in Shanghai, China.
After spending some time shooting Sako's new 150-grain Super Hammerhead, I can testify that all aspects of Sako ammunition appear to be top notch.