What frequency will scare away bats?

What are the favorite food of a bald eagle? What does it mean to be awakened by a hawk? How do geese know to come back? How many tom do you need for two hens turkeys? What do the baby birds symbolize in touching spirit bear? Do peguins make their nest with stones and pebbles? What is the sceintific name for plasma? Are acacia cyclops trees poisonous to pet parrots? What hunts flying foxes? What does 'Birds with the same feather flock together' mean? What characteristics of living thing best explain why birds fly south for the winter? What is the usual size of a little penguin? How bad is an emus temper? What is the origin of the phrase dead as a dodo? What is Cockrel in Afrikaans? Does a gull have a back bone? What do you feel when you see a Bald Eagle? Do other birds lay eggs like chickens? Is a buzzard a decomposer? Group of Turkey?