Mockingbirds are masters at copying the songs around them. Listener Tim wonders: how do they develop their expansive playlists? Two mocker experts fill us in. Plus, listener Matt has spent decades searching for someone to validate his spoon gripe. ELT finds him a kindred spirit. Guests: naturalist and host of Birds of North America Jason Ward, mockingbird mimicry researcher Dave Gammon, and materials engineer Zoe Laughlin. Thanks to callers Tim and Matt. Correction: In the original version of this episode, we told you mockingbirds imitate frog sounds. That’s true! But we played the wrong sound to illustrate that point. You can hear both the frog and the mocker imitation in this corrected version of the show.