Winter is when I get most of my hide time in, mostly the public hides around the Ouse Washes and a scrim net in the garden by the feeders. I've been thinking of buying a proper pop-up hide for a field edge where I've seen a barn owl hunting at dusk, but I've no idea which designs hold up, how long it takes birds to accept something new, or whether a simple net over a chair does the same job.
What have people found? Particularly interested in how long you leave a hide in place before using it, and whether the birds care about shutter noise.