With seemingly ideal conditions I headed to Buckenham Marshes RSPB just after lunch for a spot of Raptor watching. I found a suitable vantage point and parked up, overlooking woodland and the marshes. By 2pm, I had seen little to get excited about, 4 Common Buzzards the sum of my efforts. However at just after 2pm, I picked up what I initially assumed was a Gull distantly, but heading towards me. I soon realised this was a Tern, the flight too languid for a smaller Tern species but still distinctive. This was bigger than a Black-headed Gull. Soon enough, the bird was above me. I expected to see a black bill of a Sandwich tern, but instead got a carrot-coloured bill. Surely not? A Caspian?! Sadly the bird was lost to view heading north over Buckenham Woods. I calmed myself, and phoned RBA requesting the bird go out as a possible. Why not a definite for me? The bright sunshine I was staring into meant that the full suite of ID features could not be obtained. I could not see the prim...