With reference to India's biodiversity, Ceylon frogmouth, Coppersmith barbet, Gray-chinned minivet and White-throated redstart are

Gives explicit counts and a separate category for 'birds' (1200 species) indicating that many species in India are grouped under a distinct taxonomic/organismal class.

A student could use that birds are a recognised class in these biodiversity lists and check a field guide or online database to see if the four species are listed under that class.

States India’s ranking 'ninth in birds', treating birds as a major, identifiable group within national biodiversity.

Use this grouping to infer that species with bird-like common names (e.g., 'barbet', 'minivet', 'redstart') likely fall into that class and verify via a bird checklist or map.

Provides examples of named bird species in India (peacock, sarus crane, great Indian bustard), showing how common names are used to list birds in these texts.

A student can compare the common-name pattern (e.g., 'barbet', 'redstart') with listed bird examples to suspect these four are birds and then confirm with a bird field guide.

Mentions specific bird taxa in regional biogeographic lists (e.g., white-breasted swiftlet) demonstrating that regional faunal lists include bird species by common names.

Knowing these are included among regional bird entries, a student could consult regional bird checklists or range maps to place the four species into the same category.

Lists protected areas with 'Dominant Species Protected' including named birds (great-pied hornbill, weaver), indicating birds are treated as a distinct group in conservation contexts.

Since conservation lists segregate birds, a student can look up whether the four species appear in such protected-area bird lists or databases to infer their taxonomic grouping.