They’re always careful to blend into their surroundings. They use high powered binoculars, telescopes, and other surveillance equipment to scope out areas. They’re sometimes found snooping near dams or military bases. No wonder the U.S. government is targeting birdwatchers:
Birdwatchers in certain areas are being forced to provide photographic identification, submit themselves to background checks, and even pay for a police escort.
Via Sploid.