Oliver,
Just to reiterate and reinforce some things said above.Firstly I don't know you, how old you are nor indeed anyone else in this thread; this is not a personal attack nor do I have any axe to grind; I'm not a (resident) Norfolk birder.
Simply put do you want people to say:-
"Oliver's found a Radde's at The Dell! Quick get your gear and lets go!!"
or
"Oliver's reported a Radde's at The Dell!Probably another Chiffy"
It's all about respect and building a rapport with those around you and that can be best
achieved by birding with your peeers, betters and elders. Learning from them and in return getting them onto birds you've found is best. I'm certain there would have been kudos to spare if you could have phoned some Sheringham regulars to give them a 'heads-up' on the CShears. Reputations take some time and effort to build but can be trashed/destroyed in days thanks to the internet!! My experience of Norfolk as a visiting birder is that there are are host of talented resident and visiting birders who've always been friendly, knowledgeable and helpful to me. By the same token there are shed loads of people with "his-and-hers" matching Country Innovation coats,
Swaros/Leica/Collins Guides who've travelled the world birding and still can't identify a juvenile Gannet! I've even been challenged by inexperienced people at Cley regarding Dunnock i.d; when I left they still didn't believe me!! Seriously though the 'honeypot that is the North Norfolk coast must be the best part of the country to hone your birding skills and contribute records. Being young, keen and having sharp eyes are attributes which I'm sure you have and which I wish I still had. Find a good bird or two (nor necessarily megas), get the local guys(and indeed Penny and Sue!!)
onto it and people's opinion will change.
Russ
PS I had a Great Reed Wbr discounted by my 'elders' when I was a young teen; I can still hear the bl**ddy thing 'Cara-cara.. gurk-gurk.. kree-kree' and see it dwarfing a Reed Wbr!