FANDOM


Esacus
250px
Beach Stone-Curlew (Esacus magnirostris)
Scientific classification Red Pencil Icon
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Clade: Aequorlitornithes
Order: Charadriiformes
Suborder: Chionidi
Family: Burhinidae
Genus: Esacus
Lesson, 1831
Species
File:Esacus recurvirostris magnirostris range.png
Light green shows distribution of E. giganteus. Dark green shows distribution of E. recurvirostris.

Esacus is a genus of bird in the stone-curlew family Burhinidae. The genus is distributed from Pakistan and India to Australia. It contains two species, the Great Stone-Curlew and the Beach Stone-Curlew.

Description

The two species are larger and heavier-set than the stone-curlews of the genus Burhinus. They resemble small bustards, especially in flight, and have long and heavy bills and long legs.[1]

Distribution and habitat

The Beach Stone-Curlew is found in coastal areas, as its name suggests, seldom found far from the coast. The Great Stone-Curlew also favours water, often found close to large lakes or on the river shore. Like the Burhinus stone-curlews the Great Stone-Curlew is nocturnal, but the beach-stone curlew is less so, and feeds during the day on beaches and islands.[1] The beach curlew is found from the Andaman Is through Indonesia to Australia and New Caledonia.[2] The Great Stone-Curlew is found from coastal Iran and Pakistan through central India, Burma, Thailand to Hainan in China.[3]

Behaviour

They feed on crabs and other invertebrates; the Great Stone-Curlew uses its large bill to overturn stones to find prey, and the Beach Stone-Curlew uses its bill to break up crabs and eat them, which it catches by stalking them like a heron.[1]

The Esacus stone-curlews make harsh wailing calls. The Great Stone-Curlew is a seasonal breeder, timing it before the start of the monsoon. The timing of the beach stone-curlew is more variable across its large range.[2] The Beach Stone-Curlew is the only member of the family not to lay a clutch of two or three eggs, and lays a single egg.[1]

Status

File:Great Stone-Curlew 2.png

Both species are listed as near threatened by the IUCN. They are threatened by habitat loss, introduced predators and disturbance of their breeding habitat.[2][3]

Species

References

  1. ^ a b c d Hume, R. & Bonan, A. (2017). Thick-knees (Burhinidae). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/52241 on 12 March 2017)
  2. ^ a b c Hume, R., Kirwan, G.M. & Boesman, P. (2017). Beach Thick-knee (Esacus magnirostris). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/53774 on 12 March 2017).
  3. ^ a b Hume, R. & Kirwan, G.M. (2017). Great Thick-knee (Esacus recurvirostris). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/53773 on 12 March 2017).
Eurasian Spoonbill This article is part of Project Bird Genera, a All Birds project that aims to write comprehensive articles on each genus, including made-up genera.
This page uses Creative Commons Licensed content from Wikipedia (view authors).
Please help by writing it in the style of All Birds Wiki!
Community content is available under CC-BY-SA unless otherwise noted.