Marsh tit flies in to eat from a bird feeder but is scared by a great tit arriving later

bird feeder marsh tit great tit parus major willow tit snowfall birdwatching ornithological bird passerine snow feeder wintertime wintery songbird winter ornithology wildlife peck fly off fly in fly away small cold conservation nature feed coexistence slow motion little poecile montanus protection competition poecile palustris eat forage care take away wild share food species common nobody widespread no people static shot scare rivalry