The Great Reed Warbler.
(Acrocephalus turdoides.)

This Reed Warbler lives exclusively in reed beds, and, as it is fairly common, inhabits a large number of such places, so that in the pairing season the whole neighbourhood resounds with its love song, which even overpowers the croaking of the frogs. There are usually large numbers of the birds near together, and all join with one voice in the concert. It goes on from morning till night. Indeed during the most eager time of its wooing it goes on all night.

The song is sometimes expressed thus:—

Karrey-karrey-karrey
Ker-ker-ker
Hedder-hedder
Duee-duee-duee, etc.

Where the reeds are thickest it shoots between them, as a weaver’s shuttle shoots between the threads. What is still more clever is the way in which it climbs about the straight tall stalks of the reeds. It clasps the reed with its toes and claws, and immediately it seems to be up on the top, then in a moment it slides down again and vanishes among the reeds. And of what use is all this? This bird is of use in its own way, in places inaccessible to others. It destroys innumerable grubs and insects, which frequent water and boggy land, and does its best to make such places habitable. The food of this Reed Warbler consists principally of insects and their larvæ, although in the autumn, like most creatures, instinct teaches it to eat some fruit for health’s sake, in the shape of berries, particularly those of the elder.

The nest of this Reed Warbler is one of the marvels

USEFUL.