by Michael » Sat Jun 04, 2011 8:03 pm
I think you're over thinking this and worrying a bit too much. It's not as measured and defined as you may think. The percents are approximate and just a suggestion. You can't actually tell how much of each food actually went in the beak instead of being played with and dropped. This is why I suggest you follow the same general approach I use with my birds and then you'll be able to offer a varied diet in close to the proportions suggested by the vet. First off, this advise is mainly for the Grey and partly for the cockatiel. You may need to try a somewhat modified approach with the tiel but for the larger parrots this is definitely a safe approach.
First, don't feed the bird all day. By leaving food in all day you completely give up all control over their diet ratio. Not only that but you also won't be able to motivate them to eat any foods that are less than favorite for them to eat. Therefore, step one is to establish a feeding schedule of 2 to 3 meals per day. This way come subsequent meal times, the parrot will be hungry enough to eat what it is served rather than be picky based on preferences.
Second, ratio food by number of feedings of it per week rather than quantity. So instead of measuring out one spoon of this and two spoons of that, etc, serve all veggies one meal, all pellets another, etc. Keep the seeds and fruit strictly as treats (I recommend trick training most of all or at least foraging, heck give the treats from your hand rather than serving them in a bowl). So let's say you need to serve 25% veggies. Feed just pellets in the morning and take them away (that's 50% right there). Then serve veggies for the evening meal. After the bird is done eating veggies (Kili can eat all veggies as a dinner but Truman ends up begging for pellets), offer pellets and see if it still wants them. If it does, offer pellets and a meal of pellets will be approximately half of second meal which dilutes the veggies to 25%. If the bird is finished eating and doesn't want pellets that time, simply don't feed veggies the next day. If you feed like this, you'll easily establish the ratio:
Day 1, Meal 1: Pellets
Day 1, Meal 2: Veggies
Day 2, Meal 1: Pellets
Day 2, Meal 2: Pellets
You see, veggies establish 25% of the diet this way by alternating a single 100% veggie meal every 2 days. Unless your parrot loves veggies though, I see no harm in offering them slightly more frequently and offering some pellets after a complete veggie meal. My parrots usually prefer pellets so if they had a bunch of veggies to eat already, I'll just sprinkle some pellets into the bowl and they'll mostly stop eating veggies and focus on pellets. This ends up diluting that meal into 50/50 pellets/veggies so I can do that daily.
Third, feed only one kind of food at a time. Unless you parrots are very broad eaters (like mine have learned to become over time), if you serve "variety" in reality it just means they'll eat their favorites and ignore all else. This is the kind of unhealthy diet that leads to nutritional problems and why pellets end up being recommended (because they can't unmix them). Instead, offer a single (or maximum 2-3 veggies) per meal. For example:
Monday, Meal 2: Broccoli
Wednesday, Meal 2: Carrots
Friday, Meal 2: Corn
Sunday, Meal 2: Peppers
Regardless, offer a single veggie first. Then if the bird eats very little of it, offer another veggie later. Start with the least favorite ones (that are known to provide good nutrition) and then throw a piece of something else in every 15 minutes giving it a chance to pick at the other stuff over that time period. This way you're getting them to eat variety rather than just offering it and letting them be picky.
In summary: twice daily feedings with no food available between meals, use ratios in the span of every few days rather than single meals, and offer veggies one at a time especially starting from the least favorite ones so things actually get eaten.