{"fact":"While crows are aggressive during breeding season, they often forage together with other crow species in non-breeding seasons.","context":"Crows interact aggressively during breeding, but they often become gregarious and forage communally outside of breeding, protracting interspecific interactions year-round (Rowley 1973; Waite 1984; Goodwin 1986; Madge and Burn 1994; Rolando and Laiolo 1994; Bodey et al. 2009).","source":"Paola Laiolo, Phenotypic similarity in sympatric crow species: Evidence of social convergence?, 10.1111/evo.13195","index":628}