Some time back, I posted notes about frequent weighing of your birdies. I think I forgot to mention that I also weighed the amount of food they were consuming, just to compare with what I'd read about theoretical food consumption. If you have gram scales, weigh your food dish / bowl /container, then add some food, and re-weigh. At the end of the day, again weigh the container and food remnants to see actually how many grams of food they are consuming. In my case with 6 birdies, I have two dishes with seed mix, two with pellets, and two with other foods / vegetables. I was primarily concerned with seed and pellet intake, and guesstimated the others.
What I discovered over a period of about 2 weeks was that the average consumption of seeds and pellets was approximately 8 grams per bird, or about 48 grams total. That corresponds quite well with the recommended feedings of a moderately active cockatiel of 10% of their body weight, which in my case, most of my birds averaged in the low to mid 80 gram range. Any serious deviations from that would indicate either a potential overweight birdie, or a birdie that is less than optimally active. As has been stated by my favorite avian vet and others, a normally active bird will only consume as much food as is necessary to sustain their current weight and activity level. I have also observed that birds who fly more and are more active will eat more, drink more, and gain weight due to muscle mass, and not fat.
As I'm still on a learning curve with cockatiels myself, even after 2+ years, I encourage others to test their knowledge by experimentation and by reading about cockatiel behavior. I hope this little blurb might prompt some of you to actually determine how much your companion is eating so as to establish a baseline for future comparison, should something happen and your companion suddenly start to lose weight. Tomorrow is not too late to start!
cheers!









