Which is an Australasian songbird named for its loud metallic voice and magpielike black-and-white plumage?

The ancient Romans used which birds to relay news of chariot race results?

Which is a small brownish bird indigenous to Africa that breeds in thorn-scrub country and is thought to be among the most populous bird species in the world?

Which bird inhabits eastern Australia and forms social groups of up to 20 birds?

Which is any of more than a dozen species of small slender birds, with downcurved bills, that spiral up tree trunks in search of insects?

Which “northern” bird is a mimic that has been known to imitate the songs of 20 or more bird species within 10 minutes?

Which bird may impale its prey on a thorn as if on a meat hook, earning it the alternative name butcherbird?

Which birds gave English naturalist Charles Darwin evidence for his thesis that “species are not immutable?”

Which bird rubs ants over its feathers, possibly using the insects’ bodily fluids as a grooming aid?

Which bird is noted for hunting insects by walking underwater in rushing streams and is named for its frequent body bobbing?

Which bird is named for the shape of its tail when spread in courtship display?

Which bird was immortalized by Gilbert and Sullivan in their operetta The Mikado (1885)?