Question

7 th in what froms do the birds execrete waste material from the bodies ___​

Answer 1

Birds and insects secrete uric acid that they make through large energy expenditure but little water loss. Amphibians and mammals secrete urea that they form in their liver. Amino groups are turned into ammonia, which in turn is converted to urea, dumped into the blood and concentrated by the kidneys.

Answer 2

Uric acid

Birds excrete water materials from their bodies in the form of uric acid .

Thus they are called uricotelic animals.

Hope this helps you !