Chroicocephalus ridibundus (Linnaeus 1766)

Common name: Black-headed Gull.

Compiled from data in Table 3 and Table 4.

5 ex.; Turkey, Istanbul Province, Sazlıdere Reservoir; 2021-05-03; (Table 3) • 3 ex.; Turkey, Istanbul Province, Sazlıdere Reservoir; 2021-05-16; (Table 3) • 1 ex.; Turkey, Istanbul Province, Sazlıdere Reservoir; 2021-05-23; (Table 3) • 10 ex.; Turkey, Istanbul Province, Sazlıdere Reservoir; 2021-08-21; (Table 4) • 80 ex.; Turkey, Istanbul Province, Sazlıdere Reservoir; 2021-08-29; (Table 4) • 2 ex.; Turkey, Istanbul Province, Sazlıdere Reservoir; 2021-09-11; (Table 4) • 4 ex.; Turkey, Istanbul Province, Sazlıdere Reservoir; 2021-09-12; (Table 4) .