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The barn swallow typically feeds in open areas [49] 7–8 m (23–26 ft) above shallow water or the ground often following animals, humans or farm machinery to catch disturbed insects, but it will occasionally pick prey items from the water surface, walls and plants. [6]
Amongst the barn swallows, the male of the American subspecies helps (to a small extent), whereas the European subspecies does not. Even in species where the male does not incubate the eggs, he may sit on them when the female is away to reduce heat loss (this is different from incubation as that involves warming the eggs, not just stopping heat ...
The blue-winged wasp pictured with this column preys on beetle grubs, including the invasive Japanese beetle. Other wasps victimize cicadas, crickets, katydids, spiders, stinkbugs, walkingsticks ...
Most of those that do have such a restrictive diet, such as certain parasitoids and hunting wasps, are specialized to exploit particular species, not insects in general. Indeed, much as large mantids and spiders will do, the larger varieties of pitcher plants have been known to consume vertebrates such as small rodents and lizards.
They tend to be less conspicuous than the social (wasps) do,” Kimsey said, adding that they are “good to have around” to eat other bugs such as caterpillars. There are roughly 300 species of ...
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The bird genus Hirundo is a group of passerines in the family Hirundinidae (swallows and martins). The genus name is Latin for a swallow. [1] These are the typical swallows, including the widespread barn swallow. Many of this group have blue backs, red on the face and sometimes the rump or nape, and whitish or rufous underparts. With fifteen ...
Adult female wasps of most species oviposit into their hosts' bodies or eggs. More rarely, parasitoid wasps may use plant seeds as hosts, such as Torymus druparum. [5] Some also inject a mix of secretory products that paralyse the host or protect the egg from the host's immune system; these include polydnaviruses, ovarian proteins, and venom ...