Possible Clues:

• Large wading bird
• Show gusto around duke, wife and migrant
• Bird of the plover family
• Setter possibly rejected humor-ist's clue for wading bird
• Bird irritated duke with Mayfair lodging
• Long-legged northern shore bird
• Wader; two dig (anag.)
• Bird understood to be circling five hundred singers of 'Jerusalem'
• Wader; do twig (anag.)
• Bird brains following idol