They "kick in" at unpredictable times. Some birds will go for 20 years and then suddenly decide to start laying eggs.
The first thing I would think of is to rule out any medical causes. He should have a complete checkup, blood work, weight, etc. Is he suffering from any ailments such as arthritis? When you feel bad or hurt you get crabby. This might be the case with Bozo (or maybe after all these years he decided he didn't like that crazy name LOL).
Scarlets are "notorious" for being high strung (this is a very dangerous and annoying stereotype and generalization about macaws, but can often be true.) They are very volatile and SNICKETY. Mine loves me to the exclusion of everyone else, but even I get chomped if he doesn't like the way I talk to him or move around him. Beautiful, elegant creatures, can be absolutely amazing, but they can be the Naomi Campbells of the bird world, only they use their beaks instead of bonking you with a cell phone.
Get a full physical done. Make sure there is nothing going on with liver, aspergillosis, respiratory, tumor, arthritis, whatever. Could be a passing hormonal phase; unfortunately the phases can last for months.
Another assessment you might want to undertake is whether or not something has changed in your home. New curtains, furniture moved, new painting on the wall, new rug, different amounts of daylight, different working hours, different routine, lots of visitors, some sort of domestic crisis (seriously ill member of family), haircut, new member of household (boomerang kid?) Anything that changed which coincides with the befuddling behavior? Parrots are such intricate and frustrating creatures. Sometimes I feel as though we are the stumbling, bumbling ones who cannot see and feel the things that parrots can sense with their heightened awareness and intelligence. I wonder if they don't often get frustrated with us and think in their little parrot heads, "it's so OBVIOUS! Why can't they SEE???
Let us know how it is going.
Joanne









