What is swan upping?

What is the plural word for canopy? What is a retractable keel? Do female cockatiels have their period? What is one intersting fact about a mokingbird? What is this bird about the size of an adult blackbird with a yellow beak and the colour of runny honey? Explain the causes the cause of migration for Siberian cranes? How can a large variety of birds eat and live in the same area of one another without starving? How many eegs does the downy woodpecker? What are large Eurasian birds with black plumages called? Do puffins live in central California valley? What do Rosellas look like? What does the song a bird without wings mean? What is the history of the national eagle of the Philippines? What is the osprey related to? When to transplant chicks from hen plants? What animal has the best super senses? Name a tropical cuckoo bird 3 letters? Who offered the best of his flock to god? Does the male hummingbird make the nest? How tell the age of a pigeon?