%0 Journal Article %T Iridescent colouration of male Anna’s hummingbird (Calypte anna) caused by multilayered barbules %A Giraldo, Marco %A Parra, Juan %A Stavenga, Doekele %J Journal of Comparative Physiology A %V 204 %N 12 %P 965-975 %@ 0340-7594 %D 2018-10-08 %I Springer Berlin Heidelberg %~ DeepDyve