Cannibalism, or the killing and consumption of an individual of the same species, is well documented across a diverse array of taxa in the animal kingdom (Polis 1981). There are multiple forms of cannibalism including filicide (cannibalism of one’s own young; Klug and Bonsall 2007), siblicide (cannibalism of siblings; Robbins et al. 2013, Anderson et al. 2015), and egg cannibalism (Clark and Jackson 1994, Weldon et al. 2014). Many studies note the consumption of young and eggs by conspecifics. In review, Polis (1981) found over 100 references across more than 80 families of cannibalism of young and 118 references over more than 80 families of intraspecific egg cannibalism.

In raptors, siblicide and filicide are frequently reported (see Ingram [1959], Allen et al. [2020]). Such observations are becoming more common with technological advances like nest-monitoring camera systems (Allen et al....

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