You should think that most cattle birds never heard about this injunction. They use African Buffalos as landing strips and these big cows as as source of food while they remove the parasites from their skin.
African Buffalos (nearly) without birds
Buffalos and birds
Here, we see a fast airplane in final approach, or is it in attack phase?
Finally, here the one I prefer (“the airport is not happy“) :
African Buffalo (Syncerus caffer, Buffle d’Afrique, Búfalo negro). Kenya, Masai Mara, September 2008.