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In certain biotopes, birds constitute the bulk of the diet of various carnivorans, e.g., of adult leopard seals that mostly prey on penguins, the Arctic fox living in coastal areas where colonies of murres, auks, gulls and other seabirds abound and stoats in New Zealand against whom flightless birds like the takahē and kiwi are defenseless.
Most accipitrids will not eat plant material. Insects are taken exclusively by around 12 species, in great numbers by 44 additional species, and opportunistically by a great many others. [23] The diet of the honey-buzzards includes not only the adults and young of social insects such as wasps and bees, but the honey and combs from their nests. [34]
All swifts eat insects, such as dragonflies, flies, ants, aphids, wasps and bees as well as aerial spiders. Prey is typically caught in flight using the beak. Some species, like the chimney swift , hunt in mixed species flocks with other aerial insectivores such as members of Hirundinidae (swallows) .
The contents of a bird's pellet depend on its diet, but can include the exoskeletons of insects, indigestible plant matter, bones, fur, feathers, bills, claws, and teeth. In falconry, the pellet is called a casting. The passing of pellets allows a bird to remove indigestible material from its proventriculus, or glandular stomach.
The total biomass (which is the total mass of organisms in a given area or volume) of all adult humans on earth is estimated to be 287 million tons. And yes, spiders could eat all of that. And yes ...
As their name suggests, bee-eaters predominantly eat flying insects, especially bees and wasps, which are caught on the wing from an open perch. The insect's stinger is removed by repeatedly hitting and rubbing the insect on a hard surface. During this process, pressure is applied to the insect's body, thereby discharging most of the venom.
Adding to this conundrum are fossilized footprints of bird-like tracks that are 210 million years old—a good 60 million years before the arrival of the genus Archaeopteryx, one of the oldest ...
Hadada feed on insects, millipedes and earthworms, using their long scimitar-like bill to probe soft soil. They also eat larger insects, such as the Parktown prawn, and also spiders and small lizards. These birds also feed readily on snails and often clear garden beds around residential homes. They are particularly welcomed on bowling and golf ...