The eggs number from four to six, but five is a general clutch. They are greyish-white, sometimes tinged with pale bluish-green or pinkish in ground colour, mottled with varying shades of brown and occasionally marked with hair-like lines of dusky black on the larger end. They are smaller in size than those laid by the Tree Pipit. This species is very frequently victimised by the Cuckoo, and I have often been surprised at the lonely, treeless, and semi-barren places the “Messenger of Spring” has visited in order to find a foster-mother for her offspring. [Illustration: MEADOW PIPIT’S NEST AND EGGS.] Although such a common species, the Meadow Pipit is shyer at the nest than the Tree Pipit, and a satisfactory photograph is difficult to secure. On one occasion I was shown a nest containing chicks beneath a rock in the foreground of our tailpiece, and although I built a stone hiding-house for myself and the camera, it was a long time before I exposed a plate owing to the fact that the female persisted in standing on a crag at some distance and swallowing all the food her mate brought instead of carrying it to the young ones. [Illustration: meadow landscape] =THE WILLOW WREN.= [Illustration: twig of pussy willow] The Willow Wren, or Willow Warbler, arrives in this country early in April, and takes its departure again in September, although individuals linger with us sometimes throughout the winter in the southern parts of England. In colour it is olive-green on its upper parts, with dullish-slate brown wings and tail; chin, throat, and breast whitish-yellow, and rest of under parts greyish-white. The pale yellow line over the eye is narrower than that worn by the Wood Wren. This species is more numerous than either the Chiffchaff or the Wood Wren, and is generally distributed over the British Islands whenever trees or bushes grow in sufficient numbers for its requirements. [Illustration: WILLOW WREN’S NEST AND EGGS.] Its nest is generally situated on the ground amongst coarse grass and weeds entwining themselves round the slender twigs of small bushes in woods, plantations, orchards, hedge-banks, and by small alder-fringed streams. I have, however, sometimes seen it in a hole in a dry stone wall at a considerable height from the ground and on one occasion found a nest amongst some ivy growing against a stable wall in the Highlands at an elevation of something like six feet from a much-used garden path. The specimen figured in our illustration was situated in the mouth of a rabbit burrow in Aberdeenshire. [Illustration: YOUNG WILLOW WRENS.]