Materials tagged as "extra quality" typically feature these common IELTS question formats: 1. Multiple Choice (Specific Studies) Why researchers wore masks:

: Research at the University of Washington showed that American crows can recognize and remember individual human faces, especially those perceived as threats.

She kept careful notes. The crows learned faster than expected. Older birds taught juveniles; mothers nudged beaks to show technique; subgroups of crows specialized — one became expert at tasks involving ropes, another at manipulating small objects. Once, when Mei hid the peanuts in a transparent box with a lid, a crow named Slate pushed another juvenile toward a stick propped against the lid. The juvenile used the stick to lift one edge and free the food. Mei observed what she later wrote in her notebook: "Not imitation alone — guidance."

What tactic did the crows use to distract the fox? A. They attacked it physically. B. They fled and hid. C. They scattered leaves and dropped food elsewhere to create a false scent trail. D. They lured it into a trap. Answer: C

Ready to test your knowledge? You can find the full passage and interactive practice sessions on platforms like Online TOEIC/IELTS or Scribd . Intelligence of Corvids: Tool Makers | PDF - Scribd

The Intelligence of Corvids: IELTS Reading Insight While most people associate high intelligence with primates or dolphins, the avian world holds a surprising contender for the title of "intellectual heavyweight": the corvid family. Comprising crows, ravens, rooks, magpies, and jays, these birds have become a staple of IELTS Reading passages due to their complex behaviours and the scientific rigor required to study them.

While some people may argue that animals are not capable of complex thought or problem-solving, I disagree with this statement. Many species, including those in the corvid family, have been observed exhibiting intelligent behavior, such as tool use and complex social interactions.

A. We take it for granted that apes and monkeys are intelligent. After all, they are our closest relatives in the animal kingdom. However, in recent years, scientists have begun to realize that high intelligence is not unique to primates. A group of birds known as corvids—which includes crows, ravens, magpies, and jays—are proving to be surprisingly sophisticated.