The Pachycephalidae (from Ancient Greek παχύς (pakhús), meaning "thick", and κεφαλή (kephalḗ), meaning "head") are a family of bird species that includes the whistlers, shrikethrushes, and three of the pitohuis, and is part of the ancient Australo-Papuan radiation of songbirds. The family includes 69 species that are separated into five genera. Its members range from small to medium in size, and occupy most of Australasia. Australia and New Guinea are the centre of their diversity and, in the case of the whistlers, the South Pacific islands as far as Tonga and Samoa and parts of Asia as far as
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The Pachycephalidae (from Ancient Greek παχύς (pakhús), meaning "thick", and κεφαλή (kephalḗ), meaning "head") are a family of bird species that includes the whistlers, shrikethrushes, and three of the pitohuis, and is part of the ancient Australo-Papuan radiation of songbirds. The family includes 69 species that are separated into five genera. Its members range from small to medium in size, and occupy most of Australasia. Australia and New Guinea are the centre of their diversity and, in the case of the whistlers, the South Pacific islands as far as Tonga and Samoa and parts of Asia as far as India. The exact delimitation of boundaries of the family are uncertain, and one species, the golden whistler, has been the subject of intense taxonomic scrutiny in recent years, with multiple subspecies and species-level revisions.
==Taxonomy and systematics== The family Pachycephalidae was introduced (as the subfamily Pachycephalinae) by the English ornithologist William Swainson in 1832.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).