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The wrynecks (genus ''Jynx'') are a small but distinctive group of small
Old World The "Old World" is a term for Afro-Eurasia that originated in Europe , after Europeans became aware of the existence of the Americas. It is used to contrast the continents of Africa, Europe, and Asia, which were previously thought of by thei ...
woodpecker Woodpeckers are part of the bird family Picidae, which also includes the piculets, wrynecks, and sapsuckers. Members of this family are found worldwide, except for Australia, New Guinea, New Zealand, Madagascar, and the extreme polar regions ...
s. ''Jynx'' is from the
Ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic pe ...
''iunx'', the
Eurasian wryneck The Eurasian wryneck or northern wryneck (''Jynx torquilla'') is a species of wryneck in the woodpecker family. This species mainly breeds in temperate regions of Europe and Asia. Most populations are migratory, wintering in tropical Africa an ...
. These
bird Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweig ...
s get their
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ...
name from their ability to turn their heads almost 180°. When disturbed at the nest, they use this
snake Snakes are elongated, limbless, carnivorous reptiles of the suborder Serpentes . Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with several more ...
-like head twisting and hissing as a threat display. It has occasionally been called "snake-bird" for that reason. Like the true woodpeckers, wrynecks have large heads, long tongues, which they use to extract their
insect Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pa ...
prey, and zygodactyl feet, with two toes pointing forward and two backwards,but they lack the stiff tail feathers that the true woodpeckers use when climbing trees, so they are more likely than their relatives to perch on a branch rather than an upright trunk. Wryneck's (Jynginae) sexes are similar. Their bills are shorter and less dagger-like than in the true woodpeckers, but their chief prey is ants and other insects, which they find in decaying wood or almost bare soil. They reuse woodpecker holes for nesting, rather than making their own holes. The eggs are white, as with many hole nesters. The two species have cryptic plumage, with intricate patterning of greys and browns. The adult moults rapidly between July and September, although some moult continues in its winter quarters. The voice is a nasal woodpecker-like call. Its sound is described as a repetition of the sounds ''que, que, que'', many times in succession, rapid at first, but gradually slowing and in a continually falling key. This is only heard during a few weeks of its stay in Europe.


Taxonomy

The
genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...
''Jynx'' was introduced in 1758 by Swedish naturalist
Carl Linnaeus Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, ...
in the
10th edition 1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. ...
of his ''
Systema Naturae ' (originally in Latin written ' with the ligature æ) is one of the major works of the Swedish botanist, zoologist and physician Carl Linnaeus (1707–1778) and introduced the Linnaean taxonomy. Although the system, now known as binomial ...
''. Linnaeus placed a single species in the genus, the
Eurasian wryneck The Eurasian wryneck or northern wryneck (''Jynx torquilla'') is a species of wryneck in the woodpecker family. This species mainly breeds in temperate regions of Europe and Asia. Most populations are migratory, wintering in tropical Africa an ...
(''Jynx torquilla''), which is therefore the
type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specim ...
. The genus name is from the
Ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic pe ...
word ιυγξ/''iunx'' for the Eurasian wryneck.


Species

The genus contains two species: File:Wryneck, Village, Behlolpur, district Mohali, Punjab, India.JPG, Wryneck, Village, Behlolpur, district Mohali, Punjab, India File:Jinxtorquilla.jpg, Eurasian wryneck


References


External links


Ageing and sexing (PDF; 4.6 MB) by Javier Blasco-Zumeta & Gerd-Michael Heinze
{{Taxonbar, from=Q31818 * Picidae