Havelock Ellis,
Studies in the Psychology of Sex…
“ She looks fondly up at him, and, raising her bill to his, as though beseeching a kiss, just touches with it, in raising, the feathers of the throat—an action light, but full of endearment. And in every way she shows herself the most desirous, and, in fact, so worries and pesters the poor male gull that often, to avoid her importunities, he flies away. This may seem odd, but I have seen other instances of it. No doubt, in actual courting, before the sexes are paired, the male bird is usually the most eager, but after marriage the female often becomes the wooer. ”
