Treron is a genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of 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...

 in the pigeon family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Columbidae. The genus is distributed across Asia

Asia

Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...

 and Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

. This genus contains 23 species

Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

, remarkable for their green coloration, which comes from a carotenoid

Carotenoid

Carotenoids are tetraterpenoid organic pigments that are naturally occurring in the chloroplasts and chromoplasts of plants and some other photosynthetic organisms like algae, some bacteria, and some types of fungus. Carotenoids can be synthesized fats and other basic organic metabolic building...

 pigment in their diet. Green pigeons have diets of various fruit, nuts, and/or seeds. They dwell in trees and occupy a variety of wooded habitats. Members of this genus can be further grouped into species with long tails, medium-length tails, and wedge-shaped tails. In most green pigeon species, males and females can be told apart by their different coloration.

Species

• Cinnamon-headed Green Pigeon (Treron fulvicollis)
• Little Green Pigeon (Treron olax)
• Pink-necked Green Pigeon (Treron vernans)
• Orange-breasted Green Pigeon
  Orange-breasted Green Pigeon
  The Orange-breasted Green Pigeon is a pigeon found across tropical Asia south of the Himalaya across the Indian Subcontinent and extending into parts of Southeast Asia. Like other green pigeons, it feeds mainly on small fruit. They may be found in pairs or in small flocks, foraging quietly and...
  
   (Treron bicinctus)
• Pompadour Green Pigeon
  Pompadour Green Pigeon
  The Pompadour Green Pigeon is a pigeon in the genus Treron. It is widespread in forests of southern and southeast Asia...
  
   (Treron pompadora)
• Thick-billed Green Pigeon (Treron curvirostra)
• Grey-cheeked Green Pigeon (Treron griseicauda)
• Sumba Green Pigeon (Treron teysmannii)
• Flores Green Pigeon (Treron floris)
• Timor Green Pigeon (Treron psittaceus)
• Large Green Pigeon (Treron capellei)
• Yellow-footed Green Pigeon
  Yellow-footed Green Pigeon
  Local name- Hariyal.The Yellow-footed Green Pigeon Treron phoenicoptera also known as Yellow-legged Green Pigeon is a common species of Green Pigeon found in South Asia. The species feeds on fruits of a large variety of fruit trees including a number of species of Ficus. They forage in flocks...
  
   (Treron phoenicopterus)
• Bruce's Green Pigeon (Treron waalia)
• Madagascar Green Pigeon (Treron australis)
  • Comoros Green Pigeon (Treron (australis) comorensis)
• African Green Pigeon (Treron calvus)
• Pemba Green Pigeon (Treron pembaensis)
• São Tomé Green Pigeon (Treron sanctithomae)
• Pin-tailed Green Pigeon (Treron apicauda)
• Sumatran Green Pigeon (Treron oxyurus)
• Yellow-vented Green Pigeon (Treron seimundi)
• Wedge-tailed Green Pigeon (Treron sphenurus)
• White-bellied Green Pigeon (Treron sieboldii)
• Whistling Green Pigeon (Treron formosae)