by Pajarita » Sat Aug 06, 2016 10:47 am
Welcome to the forum and, first of all, I am sorry that you are going through such a difficult situation with your bird! I have a male Senegal that was, for over three years, the most aggressive bird I have ever had so I well know how bad they can be!
Now, at three years of age, he is precisely at the peak of his sexual development. This is the age when senegals start to breed (in the wild, it might be a little later but feeding them soy -the pellets- speeds up the process) so think of a super-randy 18 year old boy and you will have a good idea of what you are dealing with. And Wolf is correct in that this is the type of thing that builds up and builds up and, one day, it kind of explodes - but it's not 'out of the blue', it's that the bird reached a point where he cannot take it anymore because his gonads have become too large and are now painful and his unfulfilled sexual need has become frustration.
I don't believe in free-feeding any source of protein but I also do not believe in keeping them hungry or even wanting for food. I feed mine (I have two senegals now but had a total of four) gloop (I don't think that pellets are the best dietary option for parrots) and raw produce for breakfast and all day picking with one single treat (a nut, usually) during the day and a good quality mix of seeds and nuts for dinner. The only food that is measured is the dinner (because it's the source of high protein) but it's always more than enough to fill their crop with a bit leftover (I give them about two level tablespoons of it). The only difference between the warm weather diet (starting with the beginning of spring and ending halfway through molt) and the cold weather (resting season) diet is the composition of each meal which makes the warm weather diet higher in protein than the resting season and I do this by adding/switching to higher/better sources of protein to the gloop.
In my personal experience and with the exception of birds that were not treated right (the aggressive male Senegal I spoke of had spent 11 years in a small cage), the only reason why a male Senegal becomes that aggressive is when they are overly hormonal. You did not mention whether your bird is in molt right now but, if he is not, he is still producing way too many sexual hormones and that could be the problem. The only way to control this (and it won't happen overnight in a week or maybe even a month) is through diet and light exposure. Giving them the same number of night hours all year round doesn't really work because what sets their internal clock is twilight. People think that long nights is the answer but birds in studies have been made to breed on only 4 hours of light so, although the long nights could work for some birds, it's a VERY iffy proposition. The only sure thing is what nature decreed is the principal trigger for their photoperiodism and that is the different spectrum of light during twilight.
The other problem is his been clipped. Birds have no other way of dissipating 'bad' hormones fast from their bloodstream than flying - that's it! When birds don't fly, it's not only damaging to their physical and psychological wellbeing, it also makes it more difficult for them to get rid of an excess of sexual hormones.