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The Theory of Instinctive Movement
Basic Solar Navigation
17 other sections not shown
actual Africa altitude American Golden Plover Arctic Tern Arctic Warbler arrival autumn migration Barred Warbler basic behaviour birds breeding area breeding season cause glare CHAPTER coast coastal coastline cold weather movements Common Wheatear continue daylight departure direction pointer directional bias directional influence Diurnal east easterly effect en-route equinox example fact feeding flight forced glare avoidance Greenish Warbler Greenland Greenland/Iceland Wheatear heading high latitudes Homing Pigeon individuals internal clock Jean Dorst journey juvenilles less Lesser Whitethroat liable logical lower latitudes Manx Shearwater migration routes migratory moult move night nocturnal migrants North Northeast orientation Pabay passerine permit population pressure power/weight ratios recognisable Red-breasted Flycatcher reluctance response restlessness result ringing seems seesaw selective Shearwater shift Short-tailed Shearwater similar southeast southerly spring return Starlings stopping suitable sunrise Sunrise period sunset angles survival temperature topographical features trigger visible vision westerly whilst Whitethroat wind direction wing length winter quarters