DDT will do it, and there’s really nothing wrong with that wide-band bug killer. It’s time we took the wraps off the criminal propaganda that gave rise to banning of DDT by governmental heterozetesis, the ignoring of all the reasonable arguments that testify to its safe and effective use.
But only when used ate safe levels of course, that it did harm to bird before had more to do with spraying it at at least 100 times more concentrated than needed.