Many of our more vigorous species, as the butcherbird, the crossbills, the pine grosbeak, the redpoll, the Bohemian chatterer, the shore lark, the longspur, the snow bunting, etc., are common to both continents. Have the Old World creatures throughout more pluck and hardihood than those that are indigenous to this continent? Behold the common mouse, how he has followed man to this country and established himself here against all opposition, overrunning our houses and barns, while the native species is rarely seen. And when has anybody seen the American rat, while his congener from across the water has penetrated to every part of the continent! By the next train that takes the family to some Western frontier, arrives this pest. Both our rat and mouse or mice are timid, harmless, delicate creatures, compared with the cunning, filthy, and prolific specimens that have fought their way to us from the Old World. There is little doubt, also, that the red fox has been transplanted to this country from Europe. He is certainly on the increase, and is fast running out the native gray species. Indeed, I have thought that all forms of life in the Old World were marked by greater prominence of type, or stronger characteristic and fundamental qualities, than with us,—coarser and more hairy and virile, and therefore more powerful and lasting. This opinion is still subject to revision, but I find it easier to confirm it than to undermine it. IV But let me change the strain and contemplate for a few moments this feathered bandit,—this bird with the mark of Cain upon him, _Lanius borealis,_—the great shrike or butcher-bird. Usually the character of a bird of prey is well defined; there is no mistaking him. His claws, his beak, his head, his wings, in fact his whole build, point to the fact that he subsists upon live creatures; he is armed to catch them and to slay them. Every bird knows a hawk and knows him from the start, and is on the lookout for him. The hawk takes life, but he does it to maintain his own, and it is a public and universally known fact. Nature has sent him abroad in that character, and has advised all creatures of it. Not so with the shrike; here she has concealed the character of a murderer under a form as innocent as that of the robin. Feet, wings, tail, color, head, and general form and size are all those of a songbird,—very much like that master songster, the mockingbird,—yet this bird is a regular Bluebeard among its kind. Its only characteristic feature is its beak, the upper mandible having two sharp processes and a sharp hooked point. It cannot fly away to any distance with the bird it kills, nor hold it in its claws to feed upon it. It usually impales its victim upon a thorn, or thrusts it in the fork of a limb. For the most part, however, its food seems to consist of insects,—spiders, grasshoppers, beetles, etc. It is the assassin of the small birds, whom it often destroys in pure wantonness, or merely to