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that such occurrences are but accidents, and at the best extremely rare. The resident birds in Norway are chiefly boreal forms and some few of them are circumpolar in distribution, and are therefore found, not only in this country, but throughout northern Europe and Asia. On the other hand, the migratory land birds comprise those species which during the spring and summer pass up into the country from southern and western Europe, to return in the autumn. Many of these breed there, and their habits are well known to continental ornithologists. As to the water birds, the coasts, inlets, fjords and estuaries of Norway abound with them, as do many of the inland lakes and streams. Some of these numerous species are resident; a large number are migratory; and, as we should naturally expect, 'stragglers' from other lands and seas occur there from time to time. Not a few of the species are common to our Atlantic coasts, and a few others are of almost cosmopolitan distribution, in so far as the northern hemisphere is concerned.

Among the land birds there are represented the thrushes and their allies, various kinds of warblers; the dipper; titmice, nuthatch, the wrens, creeper, wagtails, pipits (one being peculiar to Norway), oriole and shrikes; flycatchers, finches and swallows; crossbills; the starling; crows and their allies; larks; swifts; the nightjar; woodpeckers and