Ocellated Turkey
Encyclopedia
The Ocellated Turkey is a species of turkey
residing primarily in the Yucatán Peninsula
. A relative of the more common Wild Turkey
(Meleagris gallopavo), it was sometimes previously treated in a genus of its own (Agriocharis ocellata) but the differences between this species and Meleagris gallopavo are too small to justify generic segregation. It is relatively large bird
, at around 70–122 cm (28–48 in) long and an average weight of 3 kg (6.6 lbs) in females and 5 kg (11 lbs) in males.
The Ocellated Turkey lives only in a 130000 km² (50,193.3 sq mi) range of the Yucatán Peninsula in Mexico
which includes the states of Quintana Roo
, Campeche
and Yucatán
, as well as parts of southern Tabasco
and northeastern Chiapas
. They also can be found in the northern parts of Belize
and Guatemala
.
color. Although females can be duller with more green, the breast feathers do not generally differ and can not be used to determine sex. Neither sex possesses the beard typically found in Wild Turkeys. Tail feathers of both sexes are bluish-grey with an eye-shaped, blue-bronze spot near the end with a bright gold tip. The spots, or ocelli (located on the tail), for which the Ocellated Turkey is named, have been likened to the patterning typically found on peafowl. The upper, major secondary wing covert
s are rich iridescent copper. The primary and secondary wing feathers have similar barring to that of North American turkeys, but the secondaries have more white, especially around the edges.
Both sexes have blue heads with some orange or red nodules
, which are more pronounced on males. The males also have a fleshy blue crown covered with nodules, similar to those on the neck, behind the snood
. During breeding season this crown swells up and becomes brighter and more pronounced in its yellow-orange color. The eye is surrounded by a ring of bright red skin, which is most visible on males during breeding season. The legs are deep red and are shorter and thinner than on North American turkeys. Males over one year old have spurs on the legs that average 4 cm (1.5 inches), which lengths of over 6 cm (2.5 inches) being recorded. These spurs are much longer and thinner than on North American turkeys.
Ocellated Turkeys are much smaller than any of the subspecies of North American Wild Turkey, with adult hens weighing in at about 4 kg (8 pounds) before laying eggs and 3 kg (6–7 pounds) the rest of the year, and adult males weighing about 5–6 kg (11–15 pounds) during breeding season.
Turkeys spend most of the time on the ground and often prefer to run to escape danger through the day rather than fly, though they can fly swiftly and powerfully for short distances as the majority of birds in this order do in necessity. Roosting is usually high in trees away from night hunting predators such as Jaguar
s and usually in a family group.
Female Ocellated Turkeys lay 8–15 eggs in a well concealed nest on the ground. She incubates the eggs for 28 days. The young are precocial
and able to leave the nest after one night. They then follow their mother until they reach young adulthood when they begin to range though often re-grouping to roost.
The voice is similar to the northern species: the male making the "Gobbling" sound during the breeding season, while the female bird makes a "clucking" sound.
Branton and Berryhill (2007) have observed that the male Ocellated Turkey does not gobble per se like the Wild Turkey. Rather, his song is distinct and includes some six to seven bongo-like bass tones which quicken in both cadence and volume until a crescendo is reached whereupon the bird’s head is fully erect while he issues forth a rather high-pitched but melodious series of chops. The Ocellated Turkey will typically begin his singing 20 to 25 minutes before sunrise—similar to the Wild Turkeys in North America
Turkey (bird)
A turkey is a large bird in the genus Meleagris. One species, Meleagris gallopavo, commonly known as the Wild Turkey, is native to the forests of North America. The domestic turkey is a descendant of this species...
residing primarily in the Yucatán Peninsula
Yucatán Peninsula
The Yucatán Peninsula, in southeastern Mexico, separates the Caribbean Sea from the Gulf of Mexico, with the northern coastline on the Yucatán Channel...
. A relative of the more common Wild Turkey
Wild Turkey
The Wild Turkey is native to North America and is the heaviest member of the Galliformes. It is the same species as the domestic turkey, which derives from the South Mexican subspecies of wild turkey .Adult wild turkeys have long reddish-yellow to grayish-green...
(Meleagris gallopavo), it was sometimes previously treated in a genus of its own (Agriocharis ocellata) but the differences between this species and Meleagris gallopavo are too small to justify generic segregation. It is relatively large bird
Bird
Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...
, at around 70–122 cm (28–48 in) long and an average weight of 3 kg (6.6 lbs) in females and 5 kg (11 lbs) in males.
The Ocellated Turkey lives only in a 130000 km² (50,193.3 sq mi) range of the Yucatán Peninsula in Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
which includes the states of Quintana Roo
Quintana Roo
Quintana Roo officially Estado Libre y Soberano de Quintana Roo is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 10 municipalities and its capital city is Chetumal....
, Campeche
Campeche
Campeche is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. Located in Southeast Mexico, it is bordered by the states of Yucatán to the north east, Quintana Roo to the east, and Tabasco to the south west...
and Yucatán
Yucatán
Yucatán officially Estado Libre y Soberano de Yucatán is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 106 municipalities and its capital city is Mérida....
, as well as parts of southern Tabasco
Tabasco
Tabasco officially Estado Libre y Soberano de Tabasco is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 17 municipalities and its capital city is Villahermosa....
and northeastern Chiapas
Chiapas
Chiapas officially Estado Libre y Soberano de Chiapas is one of the 31 states that, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 118 municipalities and its capital city is Tuxtla Gutierrez. Other important cites in Chiapas include San Cristóbal de las...
. They also can be found in the northern parts of Belize
Belize
Belize is a constitutional monarchy and the northernmost country in Central America. Belize has a diverse society, comprising many cultures and languages. Even though Kriol and Spanish are spoken among the population, Belize is the only country in Central America where English is the official...
and Guatemala
Guatemala
Guatemala is a country in Central America bordered by Mexico to the north and west, the Pacific Ocean to the southwest, Belize to the northeast, the Caribbean to the east, and Honduras and El Salvador to the southeast...
.
Description
The body feathers of both sexes are a mixture of bronze and green iridescentIridescence
Iridescence is generally known as the property of certain surfaces which appear to change color as the angle of view or the angle of illumination changes...
color. Although females can be duller with more green, the breast feathers do not generally differ and can not be used to determine sex. Neither sex possesses the beard typically found in Wild Turkeys. Tail feathers of both sexes are bluish-grey with an eye-shaped, blue-bronze spot near the end with a bright gold tip. The spots, or ocelli (located on the tail), for which the Ocellated Turkey is named, have been likened to the patterning typically found on peafowl. The upper, major secondary wing covert
Covert (feather)
A covert feather on a bird is one of a set of feathers, called coverts, which as the name implies, cover other feathers. The coverts help to smooth airflow over the wings and tail.- Wing-coverts :...
s are rich iridescent copper. The primary and secondary wing feathers have similar barring to that of North American turkeys, but the secondaries have more white, especially around the edges.
Both sexes have blue heads with some orange or red nodules
Nodule (medicine)
For use of the term nodule in dermatology, see Nodule In medicine, a nodule refers to a relatively hard, roughly spherical abnormal structure....
, which are more pronounced on males. The males also have a fleshy blue crown covered with nodules, similar to those on the neck, behind the snood
Snood
Snood can refer to:* Snood , a type of hood or hairnet worn by women* Snood , a puzzle game* A caruncle or comb that hangs over the beak of a turkey* A type bait holder used on a crabbing trotline...
. During breeding season this crown swells up and becomes brighter and more pronounced in its yellow-orange color. The eye is surrounded by a ring of bright red skin, which is most visible on males during breeding season. The legs are deep red and are shorter and thinner than on North American turkeys. Males over one year old have spurs on the legs that average 4 cm (1.5 inches), which lengths of over 6 cm (2.5 inches) being recorded. These spurs are much longer and thinner than on North American turkeys.
Ocellated Turkeys are much smaller than any of the subspecies of North American Wild Turkey, with adult hens weighing in at about 4 kg (8 pounds) before laying eggs and 3 kg (6–7 pounds) the rest of the year, and adult males weighing about 5–6 kg (11–15 pounds) during breeding season.
Behavior
Jaguar
The jaguar is a big cat, a feline in the Panthera genus, and is the only Panthera species found in the Americas. The jaguar is the third-largest feline after the tiger and the lion, and the largest in the Western Hemisphere. The jaguar's present range extends from Southern United States and Mexico...
s and usually in a family group.
Female Ocellated Turkeys lay 8–15 eggs in a well concealed nest on the ground. She incubates the eggs for 28 days. The young are precocial
Precocial
In biology, the term precocial refers to species in which the young are relatively mature and mobile from the moment of birth or hatching. The opposite developmental strategy is called "altricial," where the young are born or hatched helpless. Extremely precocial species may be called...
and able to leave the nest after one night. They then follow their mother until they reach young adulthood when they begin to range though often re-grouping to roost.
The voice is similar to the northern species: the male making the "Gobbling" sound during the breeding season, while the female bird makes a "clucking" sound.
Branton and Berryhill (2007) have observed that the male Ocellated Turkey does not gobble per se like the Wild Turkey. Rather, his song is distinct and includes some six to seven bongo-like bass tones which quicken in both cadence and volume until a crescendo is reached whereupon the bird’s head is fully erect while he issues forth a rather high-pitched but melodious series of chops. The Ocellated Turkey will typically begin his singing 20 to 25 minutes before sunrise—similar to the Wild Turkeys in North America
External links
- Images and movies of the ocellated turkey (Meleagris ocellata)—ARKive
- Ocellated Turkey videos, photos & sounds on the Internet Bird Collection