The Taiwan Blue Magpie (Urocissa caerulea), also called the Taiwan Magpie or Formosan Blue Magpie (Chinese: 臺灣藍鵲; pinyin: Táiwān lán què) or the "long-tailed mountain lady" (Chinese: 長尾山娘; pinyin: Chángwěi shānniáng; Taiwanese: Tn̂g-boé soaⁿ-niû), is a member of the Crow family. It is an endemic species living in the mountains of Taiwan at elevations of 300 to 1200m.

In 2007 National Bird Voting Campaign held by Taiwan International Birding Association, there were over 1 million votes cast from 53 countries. Taiwan Blue Magpie defeated Mikado Pheasant and was chosen as Taiwan's national bird, though it has yet to be formally accepted.

The Taiwan Blue Magpie is about the size of European Magpie, but with a longer tail. It is 64-65 centimeters in length. Wing measures 18-21 centimeters and tail measures 40 centimeters in length.

The plumage of male and female look alike. Its head, neck and breast are black; eyes are yellow; bill and legs are red; the rest of the plumage on the bird is a rich dark blue to purple in color. It also has white markings on the wings and the tail.

The Red-billed Blue Magpie, Urocissa erythrorhyncha is a species of bird in the crow family Corvidae. It is about the same size as the European Magpie but has a much longer tail, the longest tail of any corvid. It is 65-68 cm (26-27 in) long and weighs 196-232 grams (6.9-8.2 oz).

The head, neck and breast are black with a bluish spotting on the crown. The shoulders and rump are a duller blue and the underparts are a greyish cream. The long tail is a brighter blue (as are the wing primaries) with a broad white tip. The bill is a bright orange-red as are the legs and feet and a ring around the eye. This red can vary across its range to almost yellow in some birds.

The Red-billed Blue Magpie occurs in a broad swathe from the northern parts of the Indian Subcontinent, and further eastwards. It ranges from the Western Himalayas eastwards into Myanmar, Cambodia, Laos and Vietnam in evergreen forest and scrub in predominantly hilly or mountainous country. They nest in trees and large shrubs in a relatively shallow nest. There are usually three to five eggs laid.