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

Larus fuscus

Larus michahellis

Hieraaetus pennatus

Milvus migrans

Ichthyaetus audouinii

Pernis apivorus

Emberiza sahari

Morus bassanus

Circaetus gallicus
Ciconia ciconia

Hirundo rustica

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