1. Paragraph A: iii (Overturning long-held misconceptions about avian brains)
Found in Paragraph E: "...this indicates not only an acute ability to identify individual human faces but also the presence of cultural transmission..."
This guide explores the key aspects of corvid intelligence, offers sample reading answers, and explains the strategies to achieve "extra quality" in your IELTS reading score. Part 1: The Intelligence of Corvids - Core Concepts
One of the primary benchmarks used by researchers to assess higher-order intelligence is the capacity for tool manufacture and use. While many animals utilize objects in their environment, very few can manipulate or modify them to solve a specific problem. The New Caledonian crow ( Corvus moneduloides ) has become a classic model in this field of study. In laboratory experiments, these birds have been observed fashioning hooks out of straight pieces of wire to retrieve food from deep containers. This behavior requires a sophisticated understanding of cause and effect, as well as an ability to conceptualize a tool that does not yet exist in nature. Furthermore, wild New Caledonian crows routinely cut and shape twigs and stiff leaves into barbed probing tools to extract grubs from tree bark, displaying a level of technical dexterity that was once thought to be uniquely human. While many animals utilize objects in their environment,
However, a landmark experiment in 2002 turned this assumption on its head. Researchers at Oxford University captured a juvenile New Caledonian crow, which they named Betty. In an experiment, Betty and a male crow named Abel were presented with a straight piece of wire and a pre-hooked wire, along with a bucket of food that could only be retrieved using a hooked tool. Before the experiment could truly begin, Abel flew off with the hooked wire. Undeterred, Betty took the straight wire, bent one end with her beak to create a perfect hook, and successfully lifted the food bucket. This was not a learned behavior; Betty had innovated a solution to a novel problem on the spot. Over ten subsequent trials with only a straight wire, Betty repeatedly bent it to retrieve her reward, proving that tool-making in corvids is not just cultural imitation but also a spark of genuine, individual innovation.
Young corvids learn tool-making skills faster than older birds. Answers and Detailed Explanations
Reasoning: While their cognitive abilities are compared to primates, their brain structure is avian (nidopallium), which functions similarly to the mammalian prefrontal cortex but is structurally distinct. demonstrating multi-step problem solving. 2.
Do the following statements agree with the claims of the passage? Write:
For each question, choose the answer based on the information given in the passage.
Studies have shown they can understand the concept of "length" and modify tools to match the depth of a hole [3]. Social Intelligence and Memory Write: For each question
Corvids—the family of birds that includes crows, ravens, magpies, and jays—have long been recognized for their remarkable intelligence. In the context of IELTS Academic Reading, passages detailing this cognitive ability are increasingly common, providing complex scientific language and challenging question structures.
Some corvids can use one tool to obtain another tool to finally reach food, demonstrating multi-step problem solving. 2. Social Intelligence and Self-Awareness
The text describes them as "stripping leaves and modifying twigs to create hooks." 3. Why do scrub jays re-cache their food? A. To ensure the food stays fresh. B. To practice their memory skills. C. To avoid being robbed by other birds. D. Because they cannot remember where they first hid it.