Time was when you daren't set foot on the reserve unless you knew the name of every hide and pool. If you were told there's a Bittern showing well on Pat's and had to ask where that was you'd be ejected before you could put the caps back on your Swifts.
Thank you - that made me chuckle! Swift Audubons were the height of sophistication when you were 14 in the late 70s!! Most of us had a massive pair of 10 x50s, ones that your Grandad had in the war - probably last used on HMS Hood!