How To Use Tree swallow In A Sentence
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However, only terrestrial species have been tested, such as barn swallows, tree swallows, dunnocks, alpine accentors, and acorn woodpeckers.
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Also, Tree Swallows do not defend foraging areas, so dispersal does not affect access to food.
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Parent tree swallows deliver food to nestlings in a bolus, making it difficult to determine either the quantity or quality of food.
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House sparrows and starlings seem to not care for the design of the house but tree swallows, bluebirds, chickadees and wrens really like it.
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The following spring, other birds - including bluebirds, tree swallows, house wrens and a host of other secondary cavity-nesting species - scout out and lay claim to these secondhand houses.
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If you haven't attracted bluebirds or tree swallows by late spring, close your box up or take it down, but do not let English sparrows, vicious predators, take over any box.
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House sparrows and starlings seem to not care for the design of the house but tree swallows, bluebirds, chickadees and wrens really like it.
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Birds in flocks so dense that they resembled smoke clouds: thousands of tree swallows, wave after wave of American robins.
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Fall, of course, is the best time to see migrants: peregrine falcons, merlins, and flocks of tree swallows at Assateague; northern gannets just offshore; and plenty of Canadian and snow geese soaring above.
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Woodpeckers, screech owls, chickadees, nuthatches, bluebirds, tree swallows and some flycatchers need them.
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Relatively high levels of pesticides have been found in some western populations, and Tree Swallows are often used as indicator species for pollutants.
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However, only terrestrial species have been tested, such as barn swallows, tree swallows, dunnocks, alpine accentors, and acorn woodpeckers.
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Stop along the coast in Assateague and view innumerable migratory species, including peregrine falcons, merlins, and enormous flocks of tree swallows continuing their flight south.
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Last week, the tree swallow pair abandoned its nest box in the old birch tree in front of my window.
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As we stroll on, we hear ovenbirds, see a towhee in the brush, and, down at Lake Perez, see a wood duck, tree swallows, a pair of spotted sandpipers, an osprey, and quite possibly the fattest robin I've ever seen.
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Breeding in Tree Swallows is highly synchronous.
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This 55-acre park has a network of boardwalks and walkways that allows species such as the common snipe and the tree swallow to be observed without harming the lush grasses and wetland they thrive in.
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Migrating American robins and cedar waxwings fatten themselves on cherries, while tree swallows and yellow-rumped warblers head for the bayberries, an important winter food.
The Field Guide to Wildlife Habitats of the Eastern United States
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Fall, of course, is the best time to see migrants: peregrine falcons, merlins, and flocks of tree swallows at Assateague; northern gannets just offshore; and plenty of Canadian and snow geese soaring above.
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Last week, the tree swallow pair abandoned its nest box in the old birch tree in front of my window.