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There are 4889 results for: content related to: Why are birds’ eggs speckled?

  1. Effects of experimental calcium availability, egg parameters and laying order on Great Tit Parus major eggshell pigmentation patterns


    Volume 155, Issue 3, July 2013, Pages: 561–570, Rita Hargitai, Gergely Nagy, Márton Herényi and János Török

    Article first published online : 18 JUN 2013, DOI: 10.1111/ibi.12054

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    Eggshell pigmentation pattern in relation to breeding performance of blue tits Cyanistes caeruleus

    Journal of Animal Ecology

    Volume 78, Issue 1, January 2009, Pages: 31–41, Juan José Sanz and Vicente García-Navas

    Article first published online : 29 AUG 2008, DOI: 10.1111/j.1365-2656.2008.01465.x

  3. Speckles of cryptic black-headed gull eggs show no mechanical or conductance structural function

    Journal of Zoology

    Volume 285, Issue 3, November 2011, Pages: 194–204, G. Maurer, S. J. Portugal, I. Mikšík and P. Cassey

    Article first published online : 30 JUN 2011, DOI: 10.1111/j.1469-7998.2011.00830.x

  4. Variation in eggshell traits between geographically distant populations of pied flycatchers Ficedula hypoleuca

    Journal of Avian Biology

    Volume 44, Issue 2, March 2013, Pages: 111–120, Judith Morales, Suvi Ruuskanen, Toni Laaksonen, Tapio Eeva, Rafael Mateo, Eugen Belskii, Elena V. Ivankina, Antero Järvinen, Anvar Kerimov, Erkki Korpimäki, Indrikis Krams, Raivo Mänd, Chiara Morosinotto, Markku Orell, Anna Qvarnström, Heli Siitari, Fred M. Slater, Vallo Tilgar, Marcel E. Visser, Wolfgang Winkel, Herwig Zang and Juan Moreno

    Article first published online : 23 NOV 2012, DOI: 10.1111/j.1600-048X.2012.05782.x

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    Eggshell pigmentation indicates pesticide contamination

    Journal of Applied Ecology

    Volume 45, Issue 1, February 2008, Pages: 133–140, A. Jagannath, R. F. Shore, L. A. Walker, P. N. Ferns and A. G. Gosler

    Article first published online : 5 SEP 2007, DOI: 10.1111/j.1365-2664.2007.01386.x

  6. Eggshell spot scoring methods cannot be used as a reliable proxy to determine pigment quantity

    Journal of Avian Biology

    Volume 45, Issue 1, January 2014, Pages: 94–102, Kaat Brulez, Phillip Cassey, Alan Meeson, Ivan Mikšík, Simone L. Webber, Andrew G. Gosler and S. James Reynolds

    Article first published online : 4 DEC 2013, DOI: 10.1111/j.1600-048X.2013.00236.x

  7. An evaluation of different methods for assessing eggshell pigmentation and pigment concentration using great tit eggs

    Journal of Avian Biology

    Volume 46, Issue 6, November 2015, Pages: 597–607, Michèle Wegmann, Armelle Vallat-Michel and Heinz Richner

    Article first published online : 23 JUL 2015, DOI: 10.1111/jav.00495

  8. Eggshell biliverdin concentration does not sufficiently predict eggshell coloration

    Journal of Avian Biology

    Accepted manuscript online: 19 NOV 2015, Michael W. Butler and Haleigh S. Waite

    DOI: 10.1111/jav.00842

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    Avian eggshell coloration: new perspectives on adaptive explanations

    Biological Journal of the Linnean Society

    Volume 100, Issue 4, August 2010, Pages: 753–762, MICHAEL I. CHERRY and ANDREW G. GOSLER

    Article first published online : 15 JUL 2010, DOI: 10.1111/j.1095-8312.2010.01457.x

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    Calcium supplementation of breeding birds: directions for future research


    Volume 146, Issue 4, October 2004, Pages: 601–614, S. James Reynolds, Raivo Mänd and Vallo Tilgar

    Article first published online : 25 JUN 2004, DOI: 10.1111/j.1474-919x.2004.00298.x

  11. The effects of low dietary calcium during egg-laying on eggshell formation and skeletal calcium reserves in the Zebra Finch Taeniopygia guttata


    Volume 143, Issue 2, April 2001, Pages: 205–215, S. JAMES REYNOLDS

    Article first published online : 28 JUN 2008, DOI: 10.1111/j.1474-919X.2001.tb04476.x

  12. Weight change and the body reserves of female blue tits, Parus caeruleus, during the breeding season

    Journal of Zoology

    Volume 243, Issue 4, December 1997, Pages: 789–802, R. J. W. Woodburn and C. M. Perrins

    Article first published online : 24 MAR 2009, DOI: 10.1111/j.1469-7998.1997.tb01976.x

  13. Why are birds' eggs colourful? Eggshell pigments co-vary with life-history and nesting ecology among British breeding non-passerine birds

    Biological Journal of the Linnean Society


    Article first published online : 3 MAY 2012, DOI: 10.1111/j.1095-8312.2012.01877.x

  14. A comparison of indices and measured values of eggshell thickness of different shell regions using museum eggs of 230 European bird species


    Volume 154, Issue 4, October 2012, Pages: 714–724, Golo Maurer, Steven J. Portugal and Phillip Cassey

    Article first published online : 20 JUN 2012, DOI: 10.1111/j.1474-919X.2012.01244.x

    Corrected by:

    Corrigendum: Corrigendum

    Vol. 156, Issue 4, 917, Article first published online: 9 SEP 2014

  15. Calcium shortage as a constraint on reproduction in great tits Parus major: a field experiment

    Journal of Avian Biology

    Volume 33, Issue 4, December 2002, Pages: 407–413, Vallo Tilgar, Raivo Mänd and Marko Mägi

    Article first published online : 1 JUL 2003, DOI: 10.1034/j.1600-048X.2002.02990.x

  16. Eggs, egg formation and the timing of breeding


    Volume 138, Issue 1, January 1996, Pages: 2–15, C. M. PERRINS

    Article first published online : 28 JUN 2008, DOI: 10.1111/j.1474-919X.1996.tb04308.x

  17. Does supplementary calcium reduce the cost of reproduction in the Pied Flycatcher Ficedula hypoleuca?


    Volume 145, Issue 1, January 2003, Pages: 67–77, Raivo Mänd and Vallo Tilgar

    Article first published online : 17 DEC 2002, DOI: 10.1046/j.1474-919X.2003.00123.x

  18. Avian eggshell pigments are not consistently correlated with colour measurements or egg constituents in two Turdus thrushes

    Journal of Avian Biology

    Volume 43, Issue 6, November 2012, Pages: 503–512, Phillip Cassey, Ivan Mikšík, Steven J. Portugal, Golo Maurer, John G. Ewen, Erica Zarate, Mary A. Sewell, Filiz Karadas, Tomáš Grim and Mark E. Hauber

    Article first published online : 14 AUG 2012, DOI: 10.1111/j.1600-048X.2012.05576.x

  19. Test of an adaptive hypothesis for egg speckling along an elevational gradient in a population of Mexican jays Aphelocoma ultramarina

    Journal of Avian Biology

    Volume 40, Issue 4, July 2009, Pages: 448–452, Elena C. Berg, John E. McCormack and Thomas B. Smith

    Article first published online : 13 MAY 2009, DOI: 10.1111/j.1600-048X.2008.04632.x

  20. Geographic variation in calcium and clutch size

    Journal of Avian Biology

    Volume 38, Issue 6, November 2007, Pages: 637–643, Michael A. Patten

    Article first published online : 10 SEP 2007, DOI: 10.1111/j.2007.0908-8857.04203.x