Birdfy Nest Duo Review: My Own Private Nature Documentary

The Birdfy Nest Duo is a 16-inch, 8-lb smart nest box with 1080p exterior and interior cameras and temperature-humidity sensors that stream split-screen video and live data to Birdfy’s app, enabling instant download and sharing. It features interchangeable entry holes (0.9–2 in), metal predator guards, a full-side cleaning latch, and a solar-powered pole mount with an adjustable drainage tray for cavity-depth control.