Great Grey Shrike .... &.. Teifi

The Great Grey Shrike seen at 18:55 this evening, before going to roost in the scrub behind Kingfisher hide.
No Bitterns -- last seen Mon 22 March..........unless anyone has more news?
Also this evening a vocal flock of c40 Sand Martins, & 1 Swallow at 18:15; grew to c100 Sand Martins by 18:45. When a small group c6 Chiffs appeared along the footpath. A couple of White Wagtails too.