Possible Clues:

• Like a duck's foot?
• Where the spider may be asleep with such ducky feet
• Ducks feet , say
• Fly-catcher has support for feet of 23 down
• Having the toes connected by a membrane, as a waterbird
• Like an infielder's glove
• Like baseball gloves
• Like duck feet
• Like ducks' feet
• Having toes or fingers partly joined by a membrane of skin