Possible Clues:

• Bird with tail that's turned has added appeal
• Retriever, for example, raised with intelligence to bring bird
• Wag flipping tail at first, seeing wading bird
• Bird, the reverse of animal with intelligence
• Flyer's energy starts to dwindle with increased travel
• Large shorebird of the plover family
• Wader's good sense on westward track
• Long-billed wader
• Shore bird
• The man upstairs gets insight from a long-legged bird