Robin bird turning its head to get a better view and flying away

robin bird turn head fly away winter tree branch wing feather european erithacus erithacus rubecula redbreast garden friend orange red snow passerine flycatcher rubecula ruddock robinet christmas purgatory wildlife animal songbird outdoors ornithology birdwatching color delicate bird watching distinguish notice perceive perception stereo stereo vision stereopsis sensory depth optic binocular eye visual field