African grey parrots are amazing animals.

I once had an African grey who would help our other pets, often. She'd sit in her perch area, with a good view of the drive, and call out to the dog when she saw me arrive home.

She would often drop treats to the dog as well, and once we caught her trying to take dogs collar off - she almost had it.

Of course, this is anecdotal and not a scientific observation, but our grey was as much of a family member in our house as any other pets, and she was a curious and intelligent being.

(The experience swore me off pet ownership for good, however. Not fun losing such loved ones, nor realising the life they led in captivity was not their own..)