Hi. Whilst Raven's are gradually spreading across the country, and will almost inevitably do so in Norfolk in the next few years, they are still a rarely recorded bird in the county. As such they really need a description to be sent in to the counties records committee to enable sightings to be formally reviewed.
Looking back at the highlights from your recent trip I noticed that you reported a Willow Tit. This species has seen a dramatic collapse in both population and range in Norfolk (as in much of the country) over the last few years. As a result all records since 2010 have required the submission of a description to the Norfolk Records Committee. You can find details about this and download a description form from
http://norfolkbirds.weebly.com/submitting-records.html
I'd also encourage you to submit all of your sightings to the county recorder - assuming that you don't already!
Submission using BirdTrack is now the preferred method, but failing that a spread sheet including as a minimum species, location, date, count and any comments (in separate columns) would be appreciated. Please PM me if you have any queries about this.
All the best
Chris A.