What is a humming bird (Thaumastura cora) having two of the tail feathers next to the middle ones very long in the male; -- called also cora humming bird called?

shaft — (Zoöl.) A humming bird (Thaumastura cora) having two of the tail feathers next to the middle ones very long in the male; -- called also cora humming bird. (Webster's 1913.)

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