Answer:
start mixing other things with the sunflower seeds. then, slowly start to feed him other things. or, you could feed him other things and (kind of) force him to eat other things. (yes, its cruel but they need to eat) but I would advise to try not to feed him so much of the same thing so much, its unhealthy for them.
Explanation:
<span>Wildlife rehabilitation is the treatment and care of injured, orphaned, or sick wild animals so that they can be released back to the <span>wild</span></span>
They may have a slow metabolism because they less than they should.
To make up for the lack of calories, your body's metabolism slows, which means it holds on to the calories you do eat for energy.