[Alatalo R. V., Gustaffson L., Lundberg A. 1984. Why do young passerine birds have shorter wings than older birds?Ibis 126: 410-415.10.1111/j.1474-919X.1984.tb00264.x]Search in Google Scholar
[Alatalo R. V., Lundberg 1986. Heritability and selection on tarsus length in the pied flycatcher (Ficedula hypoleuca).Evolution 40: 574-583.10.1111/j.1558-5646.1986.tb00508.x28556344]Search in Google Scholar
[Andersson S., Wester S. 1971. Length of wing, bill and tarsus as a character of sex in the Dipper Cinclus cinclus.Ornis Scand. 2: 75-79.]Search in Google Scholar
[Baker K. 1993. Identification Guide to European Non-Passerines: BTO Guide 24. The British Trust for Ornithology, Thetford, Butler and Tuner Ltd, Frome and London.]Search in Google Scholar
[Banks R. C. 1988. Geographic variation in the yellow-billed cuckoo.Condor 90: 473-477.10.2307/1368575]Search in Google Scholar
[Barnett S. A., Dickson R. G. 1984. Changes among wild House Mice (Mus musculus) bred for ten generations in a cold environment, and their evolutionary implications.J. Zool. 203: 163-180.]Search in Google Scholar
[Barrett V. 1982. Elementy teorii pobierania prób. PWN, Warszawa.]Search in Google Scholar
[Berthold P. 1976. Über den Einfluss der Nestlingsnahrung auf die Jugendentwicklung, insvesondere auf das Flügelwachstum bei der Möchnsgrasmücke (Sylvia atricapilla).Vogelwarte 28: 257-263.]Search in Google Scholar
[Bub H., Dorsch H. 1988. Kennzeichen und Mauser europäischer Singvögel. 4. Teil. Cistensänger, Seidensänger, Schwirle, Rohrsänger (Cisticola, Cettia, Locustella, Acrocephalus). A. Ziemsen Verlag, Wittenberg Lutherstadt.]Search in Google Scholar
[Busse P. 1974. Biometrical methods.Not. Orn. 15: 114-126.10.1017/S000397560000285X]Search in Google Scholar
[Busse P. 1976. The Spring Migration of Birds at the East Part of Polish Baltic Coast.Acta zool. cracov. 21: 121-262.]Search in Google Scholar
[Busse P. 1986. Wing-shape indices and the problems with their interpretation.Not. Orn. 27: 137-155.]Search in Google Scholar
[Busse P. 1988. New methods of interpretation of biometrical variability in migrating birds.Not. Orn. 29: 151-192.]Search in Google Scholar
[Busse P., Maksalon L. 1986. Biometrical variability of Song Thrushes migrating through Polish Baltic coast.Not. Orn. 27: 105-127.]Search in Google Scholar
[Cooke F., Buckley P. A. (Eds). 1987. Avian genetics. A population and ecological approach. Academic Press, Harcourt Brace Jovanovich]Search in Google Scholar
[Corkhill P. 1972. Measurements of Puffins as criteria of sex and age.Bid Study 19: 193-201.10.1080/00063657209476343]Search in Google Scholar
[Cowley E. 1979. Sand Martin population trends in Britain, 1965-1978.Bird Study 26: 113-116.]Search in Google Scholar
[Cuadrado M. 1991. Wing length criteria for sex determination of Robins Erithacus rubecula wintering in southern Spain.Ornis Svecica 1: 55-57.]Search in Google Scholar
[De Lope H. 1985. Pterilosis y dimorfismo sexual de Hirundo rustica L., en Extramadura (Espana).Ardeola 32: 3-8.]Search in Google Scholar
[Dhondt A. A., Eyckerman R., Huble J. 1979. Will great tits become little tits?Biol. J. Linn. Soc. 11: 289-294.10.1111/j.1095-8312.1979.tb00040.x]Search in Google Scholar
[Dorsch H. 1981. Morphologische Maâe von Sumpf- und Teichrohrsänger (Acrocephalus palustris (Bechst.) und Acrocephalus scirpaceus (Herm.)).Zool. Abh. Dresden 37: 33-66.]Search in Google Scholar
[Ferianc O. 1979. Vtaky Slovenska. vol. 2. Veda, Bratislava.]Search in Google Scholar
[Finlay J. C. 1971. Breeding biology of purple martins at the northern limit of their range.Wilson Bull. 83: 255-269.]Search in Google Scholar
[Flegg J. J., Cox C. J. 1977. Morphometric studies of a population of blue tits and great tits.Ring. & Migr. 3: 62-64.10.1080/03078698.1977.9673717]Search in Google Scholar
[Grant P. R. 1986. Ecology and evolution of Darwin's Finches. Princeton University Press, Princeton - New Jersey.]Search in Google Scholar
[Grant P. R. 1991. Natural selection and Darwin's Finches.Sci. Am. 4: 58-64.10.1038/scientificamerican1091-82]Search in Google Scholar
[Herremans M. 1988. Postjuvenile moult, phenology and biometry of Grey Wagtails Motacilla cinerea migrating over central Belgium.Ring. & Migr. 9: 103-116.]Search in Google Scholar
[Hudec K. 1983. (Ed.). Fauna ČSSR. Ptaci - Aves. vol. III/I. Academia, Praha.]Search in Google Scholar
[Iliopoulou-Georgudaki J. 1986. The relationship between climatic factors and forearm length of bats: evidence from the chiropterofauna of Lesvos island (Greece - East Aegean).Mammalia 50: 475-482.10.1515/mamm.1986.50.4.475]Search in Google Scholar
[Ivanov A. N., Sztegman B. K. 1978. Kratkiy opredelitiel ptic SSSR. Nauka.]Search in Google Scholar
[James F. C. 1970. Geographic size variation in birds and its relationship to climate.Ecology 51: 365-390.10.2307/1935374]Search in Google Scholar
[Jones G. 1987a. Selection against large size in the sand martin Riparia riparia during a dramatic population crash.Ibis 129: 274-280.10.1111/j.1474-919X.1987.tb03208.x]Search in Google Scholar
[Jones G. 1987b. Time and energy constraints during incubation in free living swallows (Hirundo rustica); an experimental study using precision electronic balances.J. Anim,. Ecol. 56: 229-245.]Search in Google Scholar
[Kavanagh B. 1988. Discriminating the sex of Magpies Pica pica from morphological data.Ring. & Migr. 9: 83-90.10.1080/03078698.1988.9673929]Search in Google Scholar
[Kelsey M. G., Backhurst G. C., Pearson D. J. 1989. Age differences in the timing and biometrics of migrating Marsch Warblers in Kenya.Ring. & Migr. 10: 41-47.10.1080/03078698.1989.9676006]Search in Google Scholar
[Kondracki J. 1994. Geografia polski. Mezoregiony fizyczno-geograficzne. PWN, Warszawa, pp. 150-151.]Search in Google Scholar
[Kossowska-Cezak U. 1984. Climate of the Biebrza Ice-marginal valley.Pol. ecol. Stud. 10: 253-270.]Search in Google Scholar
[Kurzac T. 1986. Badania przelotu populacji trzcinniczka (Acrocephalus scirpaceus) w województwie skierniewickim.Acta Univ. lodz. 4: 25-58.]Search in Google Scholar
[Laaksonen M., Lehikoinen E. 1976. Age determination of willow and crested tits Parus montanus and Parus cristatus.Ornis Fenn. 53: 9-14.]Search in Google Scholar
[Lindman H. R. 1992. Analysis of variance in experimental design. Springer-Verlag, New York.10.1007/978-1-4613-9722-9]Search in Google Scholar
[Lo Valvo F., Lo Verde G., Lo Valvo M. 1988. Relationship among wing length, wing shape and migration in Blackap Sylvia atricapilla populations.Ring. & Migr. 9: 51-54.]Search in Google Scholar
[Lövei G. L. 1983. Wing shape variations of Chiffchaffs on autumn migration in Hungary.Ring. & Migr. 4: 231-236.10.1080/03078698.1983.9673811]Search in Google Scholar
[Maciejewski S. 1996. W krainie Biebrzy. Przewodnik po Biebrzańskim Parku Narodowym. Wydawnictwo Hańcza, Suwałki.]Search in Google Scholar
[Marquiss M. 1980. Some biometrics of a Common Crossbills from Ae Forest. Dumfriesshire.Ring. & Migr. 4: 269-274.10.1080/03078698.1980.9673760]Search in Google Scholar
[Moreno J. 1989. Body-mass variation in breeding northern wheatears: a field experiment with supplementary food.Condor 91: 178-186.10.2307/1368160]Search in Google Scholar
[Mulvihill R. S., Chandler C. R. 1990. The relationship between wing shape and differential migration in the dark-eyed juncos (Junco hyemalis).Condor 93: 172-175.10.2307/1368620]Search in Google Scholar
[Nordberg U. M. 1979. Morphology of the wings, legs and tail of three coniferous forest tits, the goldcrest, and the treecreeper in relation to locomotor pattern and feeding station selection.Phil. Trans. R. Soc. London., B. Biol. Sci. 287: 131-161.]Search in Google Scholar
[Norman S. C. 1983a. Variations in wing-lengths of Willow Warblers in relation to age, sex and season.Ring. & Migr. 4: 269-274.]Search in Google Scholar
[Norman S. C. 1983b. Growth of nestling Willow Warbler.Ring. & Migr. 4: 149-153.10.1080/03078698.1983.9673799]Search in Google Scholar
[Nowakowski J. J. 1994. Long term variability of wing shape in Acrocephalus scirpaceus population.J. Ornithol. 135: 55.]Search in Google Scholar
[Nowakowski J. J. 2000. Long-term variability of wing length in population of Reed Warbler Acrocephalus scirpaceus.Acta orn. 35: 173-182.10.3161/068.035.0210]Search in Google Scholar
[Nowakowski J. J., Wojciechowski Z. 2002. What determines the long-term variability in wing length in population of the Swallow Hirundo rustica and the Reed Warbler Acrocephalus scirpaceus?Ecol. Questions 1: 49-57.]Search in Google Scholar
[Opdam P. 1975. Inter-, and intraspecific differentiation with respect to feeding ecology in two sympatric species of the genus Accipiter.Ardea 63: 30-54.]Search in Google Scholar
[Pałczyński A. 1984. Natural differentiation of plant communities in relation to hydrological conditions of the Biebrza valley.Pol. ecol. Stud. 10: 347-385.]Search in Google Scholar
[Power D. M. 1969. Evolutionary implications of wing and size variation in the redwinged blackbird in relation to geographic and climatic factors: a multiple regression analysis.Syst. Zool. 18: 363-373.10.2307/2412181]Search in Google Scholar
[Rostad O. W. 1986. The autumn migration of the Sedge Warblers Acrocephalus schoenobaenus in east Finnmark.Fauna norv. Ser. C, Cinclus 9: 57-61.]Search in Google Scholar
[Saeman D. 1987. Phänologische und biometrische Untersuchungen an Goldhähnchen (Regulus regulus und R. Ignicapillus) aus Novdvand des Erzgebirges (Aves, Passeriformes, Sylvidae).Zool. Abh. Staatl. Mus. Tierkunde Dresden 43, 1: 1-13.]Search in Google Scholar
[Smith T. B. 1990. Natural selection on bill characters in the two bill morphs of the Africal finch Phyrenestes ostrinus.Evolution 44: 832-842.10.1111/j.1558-5646.1990.tb03808.x28569017]Search in Google Scholar
[Sokal R. R., Rohlf F. J. 1997. Biometry. W. H. Freeman Co., New York.]Search in Google Scholar
[Steiner H. M. 1970. Die von schema der Passeres abweichende Handschwingenmauser des Rohrschwirls (Locustella luscinioides).J. Orn. 111: 230-236.10.1007/BF01675599]Search in Google Scholar
[Stocek R. F. 1986. Spring weather and local movements of tree swallows, Tachycineta bicolor.Can. Field Natur. 100: 134-136.]Search in Google Scholar
[Svensson L. 1992. Identification Guide to European Passerines. Fingraf AB, Stockholm.]Search in Google Scholar
[Thomas D. K. 1977. Wing moult in the Savi's Warbler.Ring. & Migr. 1: 125-130.10.1080/03078698.1977.9673715]Search in Google Scholar
[Tiainen J. 1982. Ecological significance of morphometric variation in three sympatric Phylloscopus warbles.Ann. Zool. Fennici 19: 285-295.]Search in Google Scholar
[Tiainen J., Hanski I. K. 1985. Wing shape variation of Finnish and Central European Willow Warblers Phylloscopus trochilus and Chiffchaffs P. collybita.Ibis 127: 365-371.10.1111/j.1474-919X.1985.tb05078.x]Search in Google Scholar
[Turner A. 1984. Nesting and feeding habits of brown-chested martins in relation to weatcher conditions.Condor 86: 30-35.10.2307/1367339]Search in Google Scholar
[Turyn E. 1970. Biometric study on nesting and transmigrating populations of the Reed Warbler.Not. Orn. 11: 15-24.]Search in Google Scholar
[Van Balen J. H. 1967. The significance of variations in body weight and wing length in the great tit, Parus major.Ardea 55: 1-59.]Search in Google Scholar
[Van Valen L. 1965. Morphological variation an width of the ecological niche.Am. Nat. 99: 377-390.10.1086/282379]Search in Google Scholar
[Vaughan T. A. 1970. Flight patterns and aerodynamics. In: Wimsatt W. A. (Ed.). Biology of bats. Academic Press, New York: pp. 195-216.]Search in Google Scholar
[Wojciechowski Z. 1992. [An attempt to explain the long-term variability of morphometric parameters in the Barn Swallow (Hirundo rustica)]. Ph. D. thesis, Univ. of Łódź: 115 pp. (In Polish).]Search in Google Scholar
[Zar J. H. 1996. Biostatistical analysis. Prentice Hall International Inc., Upper Saddle River, New Jersey.]Search in Google Scholar