Thinocoridae

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Cladus: Avemetatarsalia
Cladus: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauriformes
Cladus: Dracohors
Cladus: Dinosauria
Ordo: Saurischia
Cladus: Eusaurischia
Cladus: Theropoda
Cladus: Neotheropoda
Cladus: Averostra
Cladus: Tetanurae
Cladus: Avetheropoda
Cladus: Coelurosauria
Cladus: Tyrannoraptora
Cladus: Maniraptoromorpha
Cladus: Maniraptoriformes
Cladus: Maniraptora
Cladus: Pennaraptora
Cladus: Paraves
Cladus: Eumaniraptora
Cladus: Avialae
Infraclassis: Aves
Cladus: Euavialae
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Ornithuromorpha
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Ordo: Charadriiformes
Subordo: Charadrii

Familia: Thinocoridae
Genera: Attagis - Thinocorus
Name

Thinocoridae Gray, 1845
Vernacular names
English: Seedsnipe
suomi: Ylänköjuoksijat
français: Thinocoridae
Nederlands: Kwartelsnippen
português: Thinocoridae
Türkçe: Toygar yağmurcunugiller
中文: 籽鹬科

The seedsnipes are a small family, Thinocoridae, of small gregarious waders which have adapted to a herbivorous diet. The family is divided into two genera, Attagis and Thinocorus, each containing two species. The family has a South American distribution, in the Andean and Patagonian regions. The relationships with other families within the order Charadriiformes are uncertain, it has been suggested that the plains wanderer of Australia, the jacanas and the painted snipes are their closest relatives.[1] The plains wanderer in particular has a similar feeding ecology, although differs markedly in breeding biology. The family's common name is misleading, as they do not resemble true snipe, having short bills on small heads, and seeds do not form a major part of the diet.[2] One species Thinocorus rumicivorus is however known to feed on the fleshy flower petal appendages of Calceolaria uniflora, a species of Scrophularaceae. In the process of feeding on these sugar rich appendages, they also pollinate the flowers.[3]

They resemble grouse, quail and sandgrouse, only with long wings.[2] The seedsnipes in the genus Thinocorus are smaller, ranging in size from a sparrow to a snipe, whereas the genus Attagis are larger, the size of a ptarmigan. They have short legs (but long toes) and tails. The colour of their plumage is generally cryptic. There is some sexual dimorphism in the plumage of the Thinocorus species, the males have grey faces, necks and breasts.

Seedsnipes inhabit a variety of harsh environments, including grasslands, grass steppes, semi-arid deserts and alpine habitats. The rufous-bellied seedsnipe ranges as far up as to the snowline (5500 m).

Their 2–3 eggs are laid in a shallow scrape on the ground.
Species

Image	Genus	Species
	Attagis (Saint-Hilaire and Lesson, 1831)	Rufous-bellied seedsnipe Attagis gayi White-bellied seedsnipe Attagis malouinus
	Thinocorus Eschscholtz, 1829	Grey-breasted seedsnipe Thinocorus orbignyanus Least seedsnipe Thinocorus rumicivorus

References

van Tuinen, Marcel; Waterhouse, David & Dyke, Gareth J. (2004): Avian molecular systematics on the rebound: a fresh look at modern shorebird phylogenetic relationships. Journal of Avian Biology 35(3): 191-194.
Fjeldså, J. (1996) "Family Thinocoridae (Seedsnipes)" in del Hoyo, J.; Elliot, A. & Sargatal, J. (editors). (1996). Handbook of the Birds of the World. Volume 3: Hoatzin to Auks. Lynx Edicions. ISBN 84-87334-20-2
Sérsic, A. N.; Cocucci, A. A. (1996). "A Remarkable Case of Ornithophily in Calceolaria : Food Bodies as Rewards for a Non-nectarivorous Bird*". Botanica Acta. 109 (2): 172–176. doi:10.1111/j.1438-8677.1996.tb00558.x.

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