Columbia subject headings:
Birds in literature.
Birds--Great Britain.
Natural history.
Shakespeare, William, 1564-1616--Knowledge and learning.
Harvard subject headings:
Birds in literature.
Birds--Great Britain.
Shakespeare, William, 1564-1616--Knowledge--Natural History.
Princeton subject headings:
Birds in literature.
Birds--Great Britain.
Shakespeare, William, 1564-1616--Knowledge--Natural history.