Honestly I don’t know how we missed this.
New research shows the feathery mesh on the pigeon breast acts as a fur windscreen to the microphone just inside the drone.
You might be familiar with the synthetic cap that covers a studio mic. Sometimes it’s foamy, sometimes it’s furry. Sometimes it’s a pop filter that stops you breathing on the mic.
Its purpose? Reduce audio interference for that crystal clear recording.
In the case of the pigeon drone, the feathery breast cancels out any wind interference as it flies around your streets, recording your daily lives.
Biotech microphones need biotech windshields.