Possible Clues:

• Species of bird, a large Eurasian plover
• Friend climbing on branch points to bird
• Large plover with a loud call — peewit
• Bird gets to lick syrup around man's rear
• Flier's circuit with part of RAF
• Flier, one given time to keep front of plane secure
• Bird having a plaintive warble initially in heather
• It flies round the edge
• Flier to fall behind, retaining power to land
• Bird left, taking off sandwiches first to work