They demand food. They will leave if you don’t have food they want, but return when you have enough. Pigeons only need very inexpensive food compared to the eagle.
They understand commands properly, but can’t read or anything. For example, to navigate a long distance, they have to know the way, or be given clear instructions based on landmarks they can see from up high.
12 pigeons for sure. You realize how far you could get with 12 intelligent pigeons in somewhere like NYC? They could easily gather enough cash for someone to live comfortably, and the rest is all profit. Could also fuck with anyone endlessly with pigeons, from friends and family to celebrities you hate. Coordinated shit attacks, stealing food, sunglasses, hair, etc. Could steal important mail and documents if you’re the nefarious type, or have them deliver candy to local children if you’re the generous type. Possibilities are endless.
But I guess the real question is coconut-carrying capabilities… suppose 12 pigeons had them on lines between them…