Blue-bonnet

{ or } n. 1. A broad, flat Scottish cap of blue woolen, or one wearing such cap; a Scotchman. [ 1913 Webster ]

2. (Bot.) A plant. Same as Bluebottle. [ 1913 Webster ]

3. (Zool.) The European blue titmouse (Parus cœruleus); the bluecap. [ 1913 Webster ]