In the autumn, many birds will collect seeds and then hide them in various caches throughout their habitat. the birds will guard their catches from other birds, and move the caches if they start to dry out. these caches provide a food source for the birds during the winter. what is an abiotic factor that contributed to the evaluation of this set of behaviors? a. limited food availability b. being preyed upon by larger birds c. competition with other birds for space d. cold winter climate