Sex-specific mate choice and mate change based on MHC-IIB dissimilarity in a genetically monogamous seabird

These datasets contain information about the population of black-legged kittiwakes (breeding pairs, reproductive outcome, MHC-composition and dissimilarity and associated data) of Middleton Island, Gulf of Alaska, between 1996 and 2021.These datasets are used in the analyses of the paper “Sex-specific mate choice and mate change based on MHC-IIB dissimilarity in a genetically monogamous seabird” published in "xxxxxxxxxx name of the journal xxxxxxxxxx" (xxxxxxxxxx YYYY xxxxxxxxxx). DOI: "xxxxxxxxxx link of doi xxxxxxxxxx". [to be completed upon publication]