After this post, I looked into the subject a little more. I was kind of sad on what I read (see below.) If this is factual, I am going to say that Charlie is actually a GIRL! Lol Of course this wouldn't matter, but I just was hopeful that it was a male. I'm not going to really assume anything til an actual blood test is done, but at the moment that is not something I want to do yet.
This is what I read from the bird channel:
Masturbating
Description: Masturbation is sexual activity performed by a single pet bird, usually on a favored toy, perch, or in some cases, a human’s head, hand, foot or toe.
Symptoms:
Single males most commonly masturbate. A male masturbates by bending its tail under the object, then rubbing its vent on it. Females masturbate by leaning forward and backing up while placing her vent on an object with her tail up and to the side. Both of these behaviors approximate what a bird would do during copulation.
(Charlie more backs up into objects rather than sticks the tail under.)
Immediate Care: If done infrequently, behaviorists say masturbation is healthy, allowing the bird a natural release. If your bird is masturbating too often, you can often stop the behavior by removing the favored object. If the bird tries to masturbate on a human, gently but firmly tell your bird “No,” and return it to the cage. Some birds regurgitate excessively on a toy as a part of masturbatory activity. Removing this toy will be helpful in curbing this behavior.
Long Term Care: Provide a masturbation toy for you bird occasionally, if necessary, but do not allow masturbating to become a frequent habit, as it can damage the cloaca and cause infection. Discuss this with your avian veterinarian if you feel that this behavior is becoming problematic or if it is excessive. Your vet can refer you to a bird behaviorist who can assist you in redirecting your bird’s behavior, once it has had a clean bill of health.