[HTML][HTML] Egg-laying substrate selection for optimal camouflage by quail

PG Lovell, GD Ruxton, KV Langridge, KA Spencer - Current Biology, 2013 - cell.com
Camouflage is conferred by background matching and disruption, which are both affected by
microhabitat [1]. However, microhabitat selection that enhances camouflage has only been …

The most perfect thing: the inside and outside of a bird's egg

TR Birkhead - 2016 - CSIRO Publishing
Bird eggs are amazing biological structures. For some, they are religiously revered as
symbols of fertility and birth; for most, they are simply regarded as breakfast. However, eggs …

How much calcium to shell out? Eggshell calcium carbonate content is greater in birds with thinner shells, larger clutches and longer lifespans

SC McClelland, P Cassey, G Maurer… - Journal of the …, 2021 - royalsocietypublishing.org
The avian eggshell is a bio-ceramic structure that protects the embryo. It is composed almost
entirely of calcium carbonate and a small amount of organic material. An optimal amount of …

Shedding light on bird egg color: pigment as parasol and the dark car effect

DC Lahti, DR Ardia - The American Naturalist, 2016 - journals.uchicago.edu
The vibrant colors of many birds' eggs, particularly those that are blue to blue-green, are
extraordinary in that they are striking traits present in hundreds of species that have …

Not so colourful after all: eggshell pigments constrain avian eggshell colour space

D Hanley, T Grim, P Cassey, ME Hauber - Biology letters, 2015 - royalsocietypublishing.org
Birds' eggshells are renowned for their striking colours and varied patterns. Although often
considered exceptionally diverse, we report that avian eggshell coloration, sampled here …

Advanced methods for studying pigments and coloration using avian specimens 1, 2

KJ Burns, KJ McGraw, AJ Shultz… - The Extended …, 2017 - taylorfrancis.com
Advanced analyses of feathers, eggs, and other colorful tissues in ornithology collections
are revealing fresh insights into the life histories of birds. Here, we describe the methods …

Analysing avian eggshell pigments with Raman spectroscopy

DB Thomas, ME Hauber, D Hanley… - The Journal of …, 2015 - journals.biologists.com
Avian eggshells are variable in appearance, including coloration. Here, we demonstrate that
Raman spectroscopy can provide accurate diagnostic information about major eggshell …

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

P Cassey, I Mikšík, SJ Portugal, G Maurer… - Journal of Avian …, 2012 - Wiley Online Library
The colourful appearance of avian eggshells is a prominent aspect of maternal reproductive
effort in birds. Some differences in eggshell coloration have been reported to co‐vary with …

A review of the relationship between eggshell colour and water vapour conductance

DC Deeming - Avian Biology Research, 2011 - journals.sagepub.com
This review brings together the available literature that examines the effect of variations in
pigmentation on the water vapour conductance of avian eggshells. Pheasant and Houbara …

Experimentally impaired female condition does not affect biliverdin‐based egg colour

SR D'Arpa, I Redondo, E Gómez‐Llanos… - Journal of Avian …, 2022 - Wiley Online Library
It has been proposed that blue‐green egg coloration is a condition‐dependent female
sexual trait that may modify paternal care in a post‐mating sexual selection scenario. This …