Reed Bunting 2
1cy Lesser Black-backed Gull. The bird looks quite pale in the bright sunlight, but two features clinch the id.1. The outer greater coverts are dark - the 'midwing panel' visible in flight. In Herring Gull all the GCs are the same colour as the median and lesser coverts.
2. The tertials are dark proximally and white distally: there is no white edge extending back to the greater coverts. Most often in 1cy LBB, a tertial has a dark centre with a straight edge joining a thin white border. While in 1cy Herring a wavy line typically separates the tertial's dark centre and pale border, giving the centre a shape that recalls an oak leaf: and the pale border goes back to the GCs.