Found in articles
Sao Tome (São Tomé Green Pigeon) Treron waalia, Ninga tumbo-njano (Bruce's Green Pigeon) Cryptophaps poecilorrhoa (Sombre Pigeon) Phapitreron amethystina
Orodha ya Ndege wa Afrika ya Mashariki nr. 4
Afrika African Green Pigeon Treron pembaensis Ninga wa Pemba Pemba Green Pigeon Treron waalia Ninga tumbo-njano Bruce's Green Pigeon PSITTACIDAE Poicephalus