Avian Calming Formula is made with the amino acid L-theanine, B-vitamins and lecithin. L-theanine, which is found in green tea, is the calming agent which is amplified by B-vitamins and lethicin. Avian Calming Formula is useful for behavior related chewing, screaming, aggressive and feather picking birds and can also be used for birds made nervous by new environments or traveling.