Ключевые слова: avian, behavioral research, bird, black, brown, camera equipment, canon m50, chickadee, chris moore, cmount lens, dietary habits, ecosystem, energetic expressions, environmental impact, feeding behavior, feeding strategies, flying, food preferences, foraging patterns, lens flares, light beige, light gray, nature, observation methods, ornithology, photography techniques, pile of food, study, whistlerian, wild, wildlife,