The riddle
What Sound Does a Turkey's Phone Make?
One sound swapped
A phone makes a ringing noise, so the natural reply is "ring, ring". Swap the first sound for the one that starts "wing" and the reply belongs to a bird. Aloud, the two words are the same apart from that opening sound: ring begins with an r and wing with a w, and both end in the same "ing". Words that share everything after the first sound are called rhymes, and these two are as close a rhyme as English offers.
The limb behind the word
Britannica explains that a bird's forelimbs have been modified into wings. They sit where a human's arms would. That is why the wing, not the hand, is the part of a bird that makes sense to join to a phone. The riddle gives the turkey a telephone and asks it to sound the way its body is built.
Try more rhyming words
Because only one sound changes, a group can play the game forward. Sing, king and string all share the ending, so a group can ask what a canary's phone would do, and "sing, sing" fits a songbird. The test for a good one is whether the new first sound turns the word into something the animal owns or does.
Delivery
Say "ring, ring" first in a phone voice, then pause. Many listeners say it before the teller does, and then the answer arrives as a small surprise. Fluttering a hand like a wing on the second word helps younger listeners see the swap.