+1 on worming. Worms will slow them down, but you might not notice it as birds are very good at hiding what ails them right up until it's just about too late. Worms in our birds sneak up on us, and before we know it, a bird suddenly looks lethargic and keels over.
Safeguard, according to some well-respected folks here on BYC, will knock out the most varieties of worms for a single product. A fecal float by a veterinarian will tell you for sure, but de-worming can be done as a preventative measure.
Safeguard, according to some well-respected folks here on BYC, will knock out the most varieties of worms for a single product. A fecal float by a veterinarian will tell you for sure, but de-worming can be done as a preventative measure.