Egg camouflage may explain the adaptive significance of avian eggshell pigmentation in
ground-nesting species. Eggshell maculation (spots) is predominantly due to …

SUMMARY A relationship has been suggested between eggshell colour and female body
condition based on the opposing antioxidant properties of the two main eggshell pigments …

Among the most eye-catching traits of avian eggs are their background coloration and
pigmentation, consisting in many passerine birds of dark protoporphyrin spots. Although …

Many bird species lay eggs speckled with protoporphyrin‐based spots, however, for most of
them the function of eggshell spotting is unknown. A plausible hypothesis is that …

Avian eggshell coloration has frequently been examined in a functional context (eg mimicry,
camouflage), but in recent years, an interest has emerged in identifying the mechanisms that …

Avian eggshell pigmentation may provide information about a female's physiological
condition, in particular her state of oxidative balance. Previously we found that female House …

Although it has been strongly implied that studies on structural function might resolve certain
conflicting theories regarding the huge variability of coloration in avian eggs, including …

Birds' eggshells are renowned for their striking colours and varied patterns. Although often
considered exceptionally diverse, we report that avian eggshell coloration, sampled here …

Variation in blue‐green and brown coloration of avian eggshells could be affected by
several factors, including environmental nutritional constraints. Better availability of nutrients …

Quantifying the pigment content in avian eggshells is important for the validation of
hypotheses on the functionality of eggshell coloration. The few studies that have analysed …