In the face of these constraints, adults often shift food preferences while raising nestlings (Belopol'skii 1961).
In addition, small nestlings are frequently unable to eat foods normally eaten by adults (Drent 1965; personal observation).
Thus, the energy demands ofnestlings are not easy to predict.
Raising Nestlings The length of the nestling period (hatching until departure from the nest) varies greatly among northern seabirds (Fig.
The feeding call of the adults is a soft slurred chee, while that of the nestlings has a mewing quality.
Staggered hatching is usually thought to be related to the availability of food that will insure survival of at least some of the nestlings when a shortage of food exists.
They must be tucked well out of sight, for weasels and cats, and many other giants like eggs and nestlings for breakfast.
The worms you want for your nestlings are in the garden, and the seeds you like for a lunch for yourself are on the weeds mixed up with the lawn grass.
Thinking that it might be a female, with nestlings awaiting its return, I gently placed an insect net over it with the intention of passing it out of the window.
There was another Chippy's nest in an evergreen by the house, and when the old birds were hunting for worms we used to feed the nestlings bread crumbs.
The nestlings were two weeks old before the eyes began to open, and nearly three before they were much used.
The climber lets down the eggs or nestlings in the tin and the observer can examine them in comfort on terra firma.
Of the birds of which the nests were described in January and February the Pallas's fishing eagles have sent their nestlings into the world to fend for themselves.
By the middle of January many of the eggs have yielded nestlings which are covered with white down.
The feathers of crownestlings are black in each sex.
In April and May the bird-catchers go round and collect the nestlings in order to sell them at four annas apiece.
Instantly the little nestlings were awake to the summons of her touch and chirp, and, opening their mouths wide, were ready for what she would give.
When all was quiet, the little nestlings shut their mouths, and dropped their heads.
And this brought me back to reality, and my study of those living fossils now asleep in the neighboring bunduri thorn bushes, whose nestlings so completely refute the good baron's thesis.
In fact, the greatest difference in size occurred between two nestlings of the same brood.
The nestlings of the Seaside Sparrow are fed by both parents.
The nestlings were weighed and measured daily at intervals of 24 hours.
Since I could see no behavioral differences between the nestlings of the two species, this subject will be discussed jointly for the two forms.
The weights in the zero column were of nestlings that had not been fed.
The nestlings in the eyrie--bigger and blacker and more clamorous they were now than when he went away--found more abundant satisfaction to their growing appetites.
However her wild heart ached, the nestlings must be fed.
Never before since the nestlings broke the shell had he been so long away.
It was still quite too dark for hunting, down there on earth, hungry though the nestlings were.
April, without entering the cottage, hangs over the hungry nestlings watching them.
The pain of their hunger appeased, the nestlings lay dozing in the sun, the neck of one resting across the back of the other.
His neck was stretched toward the earth, in the intensity of his search for something to ease the bitter hunger of his nestlings and his mate.
She calls to her nestlings and upon her strong wings she bears the message of peace.
Loud screams the eagle, flying swift, As an eagle flies, her nestlings seeking.
Through this sky sweeps the eagle, the "Mother" of Indian songs, bearing upon her strong wings the message of peace and calling to her nestlings as she flies.
At last one day the parents find their darling has disappeared; their summer's work is finished; four cunning little vireo nestlings have met an untimely fate, and one arrogant young cowbird is well started upon his infamous career.
India produces several species of Tailor-birds that sew together leaves for the protection of their eggs and nestlingsfrom the voracity of serpents and apes.
A pair of Golden-crested Wrens carry insects as food to their nestlings upon an average thirty-six times in an hour.
It can scarcely be denied that if they are permitted to thrive without hindrance, and grow to large numbers, they will become sorely destructive of the eggs and nestlings of more desirable birds.
One of them even flitted about with a worm in its bill--a sure sign of nestlings in the neighborhood.
But the nestlings for whom I am laboring are at Crestlands and to them I automatically hasten my steps.
Perhaps I had been inclined to treat Laura's children too much as nestlings all, wholly dependent upon me?
So swift and sure is their flight that they can feed their newly flown nestlingsin mid air; but their feet are small and weak, so that in perching they usually choose something small and easy to grasp, like a telegraph wire.
If he were not a hardy bird who sometimes raises three broods a year, I'm afraid the race would come to an end, because so many nestlings are taken each year and sold for cage birds.
The nestlings have loud, harsh voices, and resemble their parents in plumage very shortly after being fledged, as the yellow tail is soon acquired.
The nestlings are fed upon insects and milky grains of corn.
Like the nestlings of other parrots they are very ugly and helpless, and for some time after leaving the nest require the protection and care of their parents.
The nestlings are fed at first upon insects, then with seeds that have been softened in the crop, and afterwards with the same in their natural state.
In the female the head is brown, with markings of a darker shade, the throat dirty white, and encircled by a spotted band; the nestlings and young males resemble the mother.
Nestlings of this species are scarcely distinguishable from Peregrine Falcons of similar age.
Both sexes unite in the duties of incubation, sitting upon the brood for the space of a fortnight, and feeding the nestlings principally upon insects.
The capture of these birds is, owing to their great sociability, unattended with any difficulty, and even nestlings will run at the call of a decoy.
He saw that the strongest of these nestlings tyrannised over the others, pecking at them, and taking more than his due share of the food.
A lark once brought her brood of nestlings to his cell to be fed from his hand.
The Father takes heed when the sparrows fall, He hears when the starving nestlings call-- Can a tender woman not care?
Real warm weather had set in by the time the nestlings were ready to try their wings, and I thought, of course, my friends would desert me for a cooler resort out of doors, in which to pass the heated term.
It is indeed fortunate for us that this is true; for the rearing of nestlings is a tedious task.
Here one might see all the duck kind leading forth their young broods, or the eared grebe swimming with her day-old nestlings on her back.
His nest is soft and clean, his nestlings handsome.
He feeds on the eggs and nestlings of his neighbours, or waits to snatch the day's catch from the beak that brought it up from the sea.
I imagine it would have puzzled both birds to tell who was the father of the nestlings who appeared two weeks later.
Before the nestlings are ready to take their place in the struggle for life outside and hunt their own living, one or more of them has succumbed.
No wonder the woodpecker mamma sets up her nursery out of the reach of prowlers of all sorts; so loud and so persistent are the demands of her nestlings that they would not be safe an hour, if they could be got at.
Nestlings cradled near the ground seem to be spared the long period in the nest endured by birdlings who must be able to fly before they can safely go.
For six successive days we paid our short visits, and found the nestlings safe.
The nestlings were nearly ready to fly, and I hoped that birds brave enough to come out of the woods and build among apple-trees would be less afraid of people than the woods dwellers.
After the nestlings came up to the door, the parents went no more inside, as a rule, and housekeeping took care of itself.
So one day when the egret was away, the crow changed the nestlings and brought the little white egrets, to her own nest.
But," protested the egret "how have my white nestlingsbecome black?
A crow and a white egret once made their nests in the same tree, and when the nestlings began to grow up the crow saw how pretty and white the young egrets were, and thought them much nicer than her own black young ones.
In the country where they lived, a pair of kites were doing great damage: they had young ones in a nest in a tree and used to carry off children to feed their nestlings until the whole country was desolated.
At evening the old birds returned and the nestlings said that the boys had saved their lives, and asked the old birds to give them some of the food that they had brought.
After daybreak, the wheeling hawk dropped low to investigate, then struck wherever he found the nestlings fattest and most tempting.
Swaying as they perched upon the stick platforms, they managed to feed the nestlings once more.
All night, through the star-strewn summer dark, the orphaned nestlings kept up their harshly plaintive cries of hunger and loneliness.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "nestlings" in a variety of sentences. We hope that you will now be able to make sentences using this word.