
These are species with at least one recorded territory in Mozambique, 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 Mozambique, among those a photograph exists for. Most recorded is not most numerous: it rewards animals that are common, conspicuous and live where people go.

Pycnonotus barbatus

Icthyophaga vocifer

Cisticola chiniana

Coracias caudatus

Uraeginthus angolensis

Turtur chalcospilos

Dryoscopus cubla

Halcyon albiventris

Terathopius ecaudatus

Dicrurus adsimilis

Tockus leucomelas

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