Can you incude the nessary equations ( slove for all vlaues of m) and an explanation on how to do the problem?

Some species of pigeon have iridescent feathers on their necks. This coloration comes from a thin layer of keratin (n= 1.56) that forms on the edges of the feather barbules. If the keratin layer is 330. Nm thick. What colors would be strongly reflected by the feather. (assume the keratin has air on both sides).