Yes. That’s why Duga was known as the Russian Woodpecker, as it would put out a series of pulses on UHF bands that would (apparently, to someone who had never heard a woodpecker) sound like a woodpecker. This is probably what you were hearing, as it sounds more like a chopper than a woodpecker to me, too.

https://youtu.be/aOMVdOc9UbE?si=VuNjeoCMvherWwql