Doonesbury by Garry Trudeau for May 22, 1981
Dick: Aha! I got the little rascal! Lacey: How exciting, dear! Are you sure it's a Bachman's Warbler? Dick: Only one way to tell for sure, my sweet! I'll have to confirm with a bird call! Twee! Twee curry! She-wacka-too! Twee! Twee curry! She-wacka-too! She-wacka-too! Bird: Chirp! Dick: *sigh* Lacey: What'd he say, dear? Is it him?