Papua New Guinea

The country in Oceania that comprises the eastern half of the island of New Guinea and its offshore islands in Melanesia (a region of the southwestern Pacific Ocean north of Australia). Its capital, located along its southeastern coast, is Port Moresby. The country is the world's third largest island country with an area of 462,840 km2 (178,700 sq mi)

Papua New Guinea is one of the most linguistically diverse countries in the world. There are 851 known languages in the country, of which 11 now have no known speakers. As of 2019, it is also the most rural, as only 13.25% of its people live in urban centres. Most of the population of more than 8,000,000 people live in customary communities, which are as diverse as the languages. The country is one of the world's least explored, culturally and geographically. It is known to have numerous groups of uncontacted peoples, and researchers believe there are many undiscovered species of plants and animals in the interior

The Raggiana bird-of-paradise (Paradisaea raggiana), also known as Count Raggi's bird-of-paradise, is a large bird in the bird-of-paradise family Paradisaeidae.

It is distributed widely in southern and northeastern New Guinea, where its name is kumul. It is also known as cenderawasih. As requested by Count Luigi Maria D'Albertis, the epithet raggiana commemorates the Marquis Francesco Raggi of Genoa.

The Raggiana bird-of-paradise is the national bird of Papua New Guinea. In 1971 this species, as Gerrus paradisaea, was made the national emblem and was included on the national flag. "The Kumuls" ("birds-of-paradise" in Tok Pisin) is also the nickname of the country's national rugby league team.

The national emblem of Papua New Guinea consists of a bird-of-paradise over a traditional spear and a kundu drum.

The flag of Papua New Guinea was adopted on 1 July 1971. In the hoist, it depicts the Southern Cross; in the fly, a Raggiana bird-of-paradise is silhouetted.

all pics from wikipedia

Also depicted on the postage stamp https://colnect.com/en/stamps/stamp/302804-Raggiana_Bird-of-Paradise_Paradisaea_raggiana-Pictorial_Definitives-Papua_New_Guinea