{"fact":"Just like some humans might fidget when frustrated, hooded crows have a habit of dropping branches on intruders when they're feeling bothered during nesting season – a bit of a dramatic response!","context":"Hooded crows…drop pieces of branches onto intruders during the nesting season (Shumaker et al. 2011; Davenport et al. 2014), although the latter may be due to a displacement behaviour that is typical for them when they are frustrated (Heinrich 1988).","source":"Anna A. Smirnova; Leia R. Bulgakova; Maria A. Cheplakova; Sarah A. Jelbert, Hooded crows (Corvus cornix) manufacture objects relative to a mental template, 10.1007/s10071-024-01874-6","index":313}