How much time dose it take for a chrisalis to hatch?

Is it possible for a female bird to lay eggs with out a male bird? Why is the ostrich egg smallest relative to its size? Do vultures eat dead bald eagles? Can you use soap in bathing a Pigeon? Where are peregrine falcon found? Are falcons cool? Is a pigeon carnivorous? What is the bengali word for bird? How dangerous is guano? Why do male cockatiels try to bite you? How does the falcon find its prey? How would the toucan population be affected if the population of trees in its habitat decreased dramatically? Is the snipe bird endangered? Is swan non vegetarian? What is the average lifespan of songbirds? What does a pied cockatiel look like? How often do you have to feed a baby bird which hasn't opened its eyes? How many cells do hummingbirds have? How might the kite called the wooden eagle have helped a passenger spot enemies in the distance? What are some myths about rainbow lorikeets?