MOTIVATION AND MEASURES OF ACCESSIBILITY

[1] Alerstam T., 1990, TREE, V6, P210

[2] BAKER MC, 1978, EVOLUTION, V32, P697, DOI 10.1111/j.1558-5646.1978.tb04623.x

[3] THE ADVANTAGES AND EVOLUTION OF A MORPHOLOGICAL NOVELTY [J]. NATURE, 1991, 349 (6309) : 519 - 520

[4] THE FUNCTION OF BILL-WIPING [J]. ANIMAL BEHAVIOUR, 1992, 43 (01) : 103 - 115

[5] PERCEIVED RISK AND OBSTACLE AVOIDANCE IN FLYING BIRDS [J]. ANIMAL BEHAVIOUR, 1990, 40 : 188 - 190

[6] THE EFFECT OF ACCESSIBILITY ON RATES OF FRUIT REMOVAL FROM TROPICAL SHRUBS - AN EXPERIMENTAL-STUDY [J]. OECOLOGIA, 1982, 54 (02) : 170 - 176

[7] Feare CJ., 1984, STARLING

[8] GOSLER A, 1987, THESIS OXFORD U OXFO

[9] PATTERN AND PROCESS IN THE BILL MORPHOLOGY OF THE GREAT TIT PARUS-MAJOR [J]. IBIS, 1987, 129 (04) : 451 - 476

[10] LEHIKIONEN NE, 1986, THESIS U TURKU TURKU

[1] Alerstam T., 1990, TREE, V6, P210

[2] BAKER MC, 1978, EVOLUTION, V32, P697, DOI 10.1111/j.1558-5646.1978.tb04623.x

[3] THE ADVANTAGES AND EVOLUTION OF A MORPHOLOGICAL NOVELTY [J]. NATURE, 1991, 349 (6309) : 519 - 520

[4] THE FUNCTION OF BILL-WIPING [J]. ANIMAL BEHAVIOUR, 1992, 43 (01) : 103 - 115

[5] PERCEIVED RISK AND OBSTACLE AVOIDANCE IN FLYING BIRDS [J]. ANIMAL BEHAVIOUR, 1990, 40 : 188 - 190

[6] THE EFFECT OF ACCESSIBILITY ON RATES OF FRUIT REMOVAL FROM TROPICAL SHRUBS - AN EXPERIMENTAL-STUDY [J]. OECOLOGIA, 1982, 54 (02) : 170 - 176

[7] Feare CJ., 1984, STARLING

[8] GOSLER A, 1987, THESIS OXFORD U OXFO

[9] PATTERN AND PROCESS IN THE BILL MORPHOLOGY OF THE GREAT TIT PARUS-MAJOR [J]. IBIS, 1987, 129 (04) : 451 - 476

[10] LEHIKIONEN NE, 1986, THESIS U TURKU TURKU