Had a go at looking for colour-ringed Med Gulls in the flock of c. 650 at Llanon this afternoon and ended up with the following 27 different birds:
WHITE - 382E F336 3NPH E438 310J 3XJV E336 3KJV E542 E320 3207 3YYA 3851 3087
GREEN - RH2J RU7E RJ74 RJ7L RX6V R37P R4AV RU93 2R6(three digit code)
YELLOW - 2XEO 2C26 2C99
RED - H2W6