[1]
“Diet composition of the Caspian Gull (Larus cachinanns) in inland Poland: effects of breeding area, breeding stage and sympatric breeding with the Herring Gull (Larus argentatus) ”, Ornis Fenn, vol. 88, no. 2, pp. 80–89, Jul. 2011, doi: 10.51812/of.133765.