Apalharpactes is a genus 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...

s in the Trogonidae family. They are restricted to humid highland forest on the Indonesia

Indonesia

Indonesia , officially the Republic of Indonesia , is a country in Southeast Asia and Oceania. Indonesia is an archipelago comprising approximately 13,000 islands. It has 33 provinces with over 238 million people, and is the world's fourth most populous country. Indonesia is a republic, with an...

n islands of Java

Java

Java is an island of Indonesia. With a population of 135 million , it is the world's most populous island, and one of the most densely populated regions in the world. It is home to 60% of Indonesia's population. The Indonesian capital city, Jakarta, is in west Java...

 and Sumatra

Sumatra

Sumatra is an island in western Indonesia, westernmost of the Sunda Islands. It is the largest island entirely in Indonesia , and the sixth largest island in the world at 473,481 km2 with a population of 50,365,538...

. Unlike all other Asian trogons, their plumage

Plumage

Plumage refers both to the layer of feathers that cover a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage vary between species and subspecies and can also vary between different age classes, sexes, and season. Within species there can also be a...

 is mainly green above and yellow below. Compared to most trogon

Trogon

The trogons and quetzals are birds in the order Trogoniformes which contains only one family, the Trogonidae. The family contains 39 species in eight genera. The fossil record of the trogons dates back 49 million years to the mid-Eocene. They might constitute a member of the basal radiation of...

s, the sexual dimorphism

Sexual dimorphism

Sexual dimorphism is a phenotypic difference between males and females of the same species. Examples of such differences include differences in morphology, ornamentation, and behavior.-Examples:-Ornamentation / coloration:...

 is relatively small. The two species in the genus resemble each other, but A. reinwardtii is larger than A. mackloti, and the male A. mackloti has a chestnut rump-patch, which A. reinwardtii lacks. They feed on arthropod

Arthropod

An arthropod is an invertebrate animal having an exoskeleton , a segmented body, and jointed appendages. Arthropods are members of the phylum Arthropoda , and include the insects, arachnids, crustaceans, and others...

s, small lizards and fruit.

Taxonomy

The members of Apalharpactes are sometimes placed in the genus Harpactes

Harpactes

Harpactes is a genus of birds in the Trogonidae family found in forests in South and Southeast Asia, extending into southernmost China. They are strongly sexually dimorphic, with females generally being duller than males. Their back is brownish, the tail is partially white , and males of most...

instead.

The two species of Apalharpactes were formerly treated as conspecific under the name Red-billed Trogon or Blue-tailed Trogon (Apalharpactes reinwardtii, with mackloti as a subspecies

Subspecies

Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...

).

• Sumatran Trogon
  Sumatran Trogon
  The Sumatran Trogon is a species of bird in the Trogonidae family. It was formerly considered conspecific with the Javan Trogon under the common name Blue-tailed Trogon....
  
   (Apalharpactes mackloti)
• Javan Trogon
  Javan Trogon
  The Javan Trogon is a species of bird in the Trogonidae family. The species was once lumped together with the Sumatran Trogon in a single species, the Blue-tailed Trogon, but differences in size, weight and plumage have led to the two being split...
  
  (Apalharpactes reinwardtii)