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

Coracias caudatus

Hirundo rustica

Actophilornis africanus

Crinifer concolor

Lamprotornis australis

Lamprotornis mevesii

Uraeginthus angolensis

Icthyophaga vocifer

Pternistis adspersus

Merops pusillus

Vanellus armatus

Anastomus lamelligerus
The field guide covers Botswana on the map, but none of its species have an entry written for them yet.