Here's one:
"Why did the goose go to the restaurant? Because it heard they had a fowl menu!"
Explanation: This joke is funny because it takes the common phrase "menu" (a list of food options) and gives it a bird-themed twist by referencing the goose's species and the word "fowl" (a type of bird, but also a pun on "foul" meaning bad or unpleasant). The pun on "fowl" creates a humorous incongruity, making the joke silly and unexpected. The idea is to surprise the listener by using a word in a unexpected way, creating a clever and silly reference to the goose's unique characteristic.