Fossilized food was even found in some nests, indicating that the adults fed their young. Fossil footprints have shown that some adult and immature dinosaurs travelled in groups, as if migrating. Canaries can learn new songs each year during the molt. Canaries grow new glial cells in their brains, according to researchers at Rockefeller University. The aborigines in Australia ate many parakeets, by roasting the adults or just eating the chicks.
Birds are smarter than people used to believe.
For cleaning bird toys and dishes, dissolve baking soda in hot water, then add vinegar. When it stops foaming, rinse clean. Put baking soda in your drain and pour vinegar into it. This safely cleans your drains. For stained dishes, tube feeders, etc.