A member of the Corvidae family of birds (crows, ravens, magpies).
Corvids are also highly social birds, and their intelligence is likely linked to their complex social behaviors. Many corvid species are known to form long-term pair bonds, and some even engage in playful activities, such as sliding down snowy hills or playing with sticks.
Corvids are a family of birds that includes crows, ravens, jays, and magpies. They are known for their intelligence, which is often compared to that of primates. Corvids have been observed exhibiting complex behaviors, such as using tools to obtain food.
and ravens—possess cognitive skills that often rival or even surpass those of primates 1. The Master Toolmaker: Betty’s Innovation In the wild, New Caledonian crows are famous for crafting hooks from twigs spears from leaves
In one experiment, the jays were given worms (a favorite treat) and nuts. They buried them in separate trays. The researchers learned that if the jays were allowed to return to the trays after a short time, they went straight for the worms. However, if a long time passed, they ignored the worms—knowing the worms would have decayed—and went for the nuts. the intelligence of corvids ielts reading answers
The "Intelligence of Corvids" passage typically employs three specific IELTS question types designed to test different reading skills:
Corvids are also capable of fooling humans. Marzloff tells the story of a pair of crows that built a that they always flew to when researchers were in their area. The crows' actual nest with their young was nearby, but the humans never saw the crows actually fly to it.
Answer: NOT GIVEN
However, the narrative shifts to the famous "wire-bending" experiment. Dr. Emery placed a small bucket of food at the bottom of a vertical tube. Beside it, he placed a straight piece of wire. The male crow, Abel, attempted to grab the bucket and failed. But Betty, the female, picked up the wire. A member of the Corvidae family of birds
These questions test your ability to identify specific information and understand the author's exact meaning.
Corvids have been proven to have greater cognitive abilities than all primate species.
Focuses on the neurological differences between mammals and birds, explaining how the avian brain compensates for a lack of a cortex.
For decades, the scientific community operated under a mammal-centric bias, assuming that complex problem-solving, tool use, and abstract reasoning required a highly developed cerebral cortex—a brain structure unique to mammals. Corvids have fundamentally challenged this paradigm. Despite possessing a brain the size of a walnut, the ratio of their brain-to-body mass is comparable to that of a chimpanzee. Corvids are a family of birds that includes
As Dr. Emery writes up his findings, the conclusion of the passage becomes clear. Corvids are "feathered apes." Their intelligence is not a product of a shared ancestor with humans, but a result of
Dr. Nathan Emery stood before the aviary, a stopwatch in one hand and a piece of wire in the other. Inside the enclosure, a female crow named watched him with intense, obsidian eyes. This scene wasn't just a moment of scientific observation; it was the setting for one of the most famous experiments in animal cognition—a study that frequently appears in IELTS Reading passages under titles like "The Intelligence of Corvids" or "Birds of a Feather."
| Q | Answer | Location | Explanation | | :--- | :--- | :--- | :--- | | | humans | Paragraph 1, lines 1–2 | Before Goodall's 1960 discovery, tool making was thought to be uniquely human . | | 9 | grubs | Paragraph 2, line 1 | New Caledonian crows make hooks to pull grubs from deep tree holes. | | 10 | learn from other birds | Paragraph 2, line 3 | Tool designs vary by area, leading researchers to conclude that tool use is culturally learned from other crows. | | 11 | hooks | Paragraph 3, line 5 | Betty bent straight wire into hooks to lift a bucket of food. | | 12 | teach her how to make | Paragraph 3, line 2 | Betty invented a new tool without observing other crows, so no one taught her. | | 13 | repeat | Paragraph 3, lines 6–8 | Scientists wanted to see if Betty could replicate (repeat) her tool‑making behaviour. |
If this were the actual reading text, here is how the answers would map out:
One of the key areas of research into corvid intelligence has focused on their problem-solving abilities. In a series of experiments, researchers have presented corvids with complex problems, such as retrieving food from puzzle boxes or using tools to obtain rewards. The results have been impressive, with corvids consistently demonstrating a high level of innovation and creativity in their problem-solving.
Furthermore, corvids exhibit future planning. In experiments where ravens were given a tool that could open a box containing a reward, but were separated from the box for 15 minutes, the ravens chose to carry the tool with them, saving it for later. They delayed gratification intentionally, a sign of .