Some of these occasionally migrate east or north so that they are collected in the Central states.
This is due not only to the propensity of the individual for taking aerial journeys, but also to the fact that this is one of the butterflies which has the instinct to congregate in swarms and to migrate long distances when thus congregated.
Such migrations among mammals have often been recorded, one of the most notable examples being that of the little lemmings which migrate at periodical intervals in a way which has often been described.
In less than a week the eggs hatch into minute blackish caterpillars that feed upon the tender tissues of the leaf upon which they were born and then migrate together toward the top of the plant.
As one leaf is thus denuded they migrate to another, in this way passing from leaf to leaf for several weeks in summer.
That nation is composed almost entirely of shepherds and herdsmen, and the elder sons, as soon as they are capable of leading a pastoral life, migrate from their father with a certain allotment of cattle, and go to seek a new habitation.
And thus we find that, among many other northern nations, it was the custom for all the sons, but one, to migrate from the father, which one became his heir.
The Laplander and the reindeer migrate together; the Tartars migrate all the year through, crossing the steppes in winding and devious but fixed paths, paths settled for each family, and kept without a map, though invisible to strangers.
The original and simple theory that the majority of birds migrate for food or warmth is not overthrown by modern observations.
Leroy also says that when swallows are hatched out too late to migrate with the older birds, the instinct of migration is not sufficiently imperative to induce them to undertake the journey by themselves.
If it is an advantage that the cuckoo should migrate early, it clearly becomes an advantage, in order to admit of this, that the habit should be formed of leaving her eggs for other birds to incubate.
Mr. Belt adds: 'I afterwards found that when much disturbed, and many of the ants destroyed, the survivors migrateto a new locality.
When they migrate from one part to another, they also carry with them all the ant-food from their old habitations.
He may one day migrate (“going abroad” is a familiar topic in this City of lowly paid clerks and multitudinous cheap and obvious modes of exit), and if he does he will certainly score.
The conclusion is that the Canada geese have no desire for change; and the reason that other birds do not migrate is probably the same.
Moorhens evidently migrate up or down the river in spring and autumn, and occasionally dabchicks; otherwise their sudden appearance and disappearance on the eyot could not be accounted for.
But as the snow-line descends each winter far below their summer feeding haunts, wild sheep either migrate to the lower slopes of the mountains, or, like the deer of the Rockies, move off altogether to great distances.
Sandpipers also migrate up the Thames in spring, and down it in autumn.
Such common finches as the greenfinches and chaffinches migrate in immense flocks, and over vast distances, considering their short wings and small size.
These birds return every spring to Mosul, hatch their eggs, and migrate in early autumn.
When wishing to seek pastures new they migrate from one place to another with all their flocks and herds, the tending of which forms one of their chief occupations.
Peoples migrate in search of better living conditions, or merely in search of new experience.
If the inhabitants should migrate in a body, the streets and buildings would remain.
In America the Arctic birds migrate to the Southern United States and Mexico.
The cranes usually, if not always, migratein greater or lesser flocks, alternately circling upward to considerable heights and sailing straight away, with both soaring and flapping motion, and with prodigious croakings.
The herons migrate singly or in pairs, with long, steady sweep of the wings, and make no outcry.
You know how the birds--how caribou--migrate every year.
The nations must migrate and a new life in which war is unknown must begin upon the globe.
While he was there they were all planning to migrate for the most absurd reason--what do you suppose?
These birds migrate hither in October and November, lingering in the Himalayan valleys till the cold of early spring drives them further south, to the plains of India, whence they return north in March and April.
The geese* [An enormous quantity of water-fowl breed in Tibet, including many Indian species that migrate no further north.
Etorofu and Kunashiri, though much larger in size, are of less interest to us in connection with the Ainu, as most of that race found there migrate from Yezo during the fishing season; therefore, nothing is to be added about them.
The habit of rats to migrate in numbers, apparently well ordered, and under leadership, has often been noticed, and the way in which they will leave a burning house or a sinking ship has often been recorded.
The Cranes belong to Africa and Southern Asia, butmigrate from clime to clime as the seasons change.
The marvellous flights of these birds when they migrate are among the many wonderful things of nature.
Constantine had determined to endow his new city with a senate modelled on that of Old Rome, and had indeed persuaded many old senatorial families to migrate eastward by judicious gifts of pensions and houses.
Marked eels have been proved to migrate from the inmost part of the Baltic to the Kattegat.
In both kinds there are males and females, but Petersen shows that the yellow eels change into silver eels when they migrate to the sea.
Most of the birds and many of the quadrupeds migrate to more southern regions; and those that remain are shy and rare.
Here our voyageurs saw many kinds of birds; both those that migrate into the fur countries during summer, and those that make their home there in the cold, dark days of winter.
The bluebirds from Canada and the northern portions of New England and New York migrate into Virginia and the Carolinas; the birds from the Middle States move down into the Gulf States to pass the winter.
In the spring they have been thought by many to migrate in flocks, whereas they are only retreating with their relations away from the haunts of men to the deep, cool woods, where they nest.
It is quite certain that they migrate to the South in the fall, and that many return in the spring.
Hooker reply that when animals or plants migrate into new countries, whether assisted by man or without his aid, the most successful colonisers appertain by no means to those types which are most allied to the old indigenous species.
But as soon as their numbers increased they would be forced to migrate into regions less secure and blest with a less genial climate.
It is very prolific, and vast hordes periodically migrate down to the sea, destroying much vegetation in their path.
Would that they were permitted to migrate from one portion of your realm to the other and live under the same circumstances as elsewhere.
This colony soon increased by a second settlement of Jews hailing, likewise, from Brazil, who were undoubtedly persuaded to migrate thither by their Dutch co-religionists in Cayenne.
To-morrow we shall return to our harbor, and endeavor to procure a few more reindeer before they migrate southward.
As I have said elsewhere, nearly all the game-beasts migrate from their favourite haunts where they have been concentrated in large herds as long as food was plentiful.
The animals, instinct led, follow the waterfall of the storm, and migrate to and fro in narrow zones.
Colloidal arsenious sulphide is found tomigrate toward the positive pole, ferric hydroxide [p132] to the negative pole, the movement being easily followed by the color of the suspended particles.
The numbers of Quail which must migrate passes belief, for it is recorded that in Coronation Year five million were ordered and supplied for the English market alone.
Some undoubtedlymigrate north; it may be they never return, and so the annual decrease.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "migrate" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: emigrate; expatriate; flit; migrate; range; run; stake; swarm; transmigrate; trek
