Hello everybody

i am the owner of 2 awesome African Grays and i have a few Questions.. First let me say i am a big fan of parrots but i am a new owner. I have been around Parrots which friends have owned but never owned one myself. I recently inherited a TAG (male) and a CAG (MALE) from an Aunt who could no longer care for them. They are 26 years old and have some bad habits including biting. They love attention and are great talkers but are very jealous and throw fits when i give the other attention, in fact my cag (Casey) bit my tag (Guy) on the foot today because i was playing with one and not the other at the moment and he bit em hard enough to draw blood!!!

. These birds are my buddies and might outlive me and i hope at their age i can break them of their bad habits and have a great and trusting relationship with both birds. Is it too late to cure them of their biting? My Timneh (Guy) plucks his feathers... Why? And Can i cure their jealousy issue??