
These are species with at least one recorded territory in Eswatini, not a national checklist: a bird list from eBird or Avibase is more complete. The counts follow recording effort as much as wildlife, so a country with more visitors and more naturalists will show more of both.
The species with the most open occurrence records in Eswatini, among those a photograph exists for. Most recorded is not most numerous: it rewards animals that are common, conspicuous and live where people go.

Andropadus importunus

Turtur chalcospilos

Turdus libonyana

Cisticola chiniana

Telophorus viridis

Pycnonotus barbatus

Apalis flavida

Melaenornis pammelaina

Erythropygia leucophrys

Halcyon albiventris

Cossypha heuglini

Macronyx croceus
The reference database has no regions filed under Eswatini.
The field guide covers Eswatini on the map, but none of its species have an entry written for them yet.