# Research on the Tool-using Skills of New Caledonian Crows IELTS Academic Listening - 10 questions - 10 minutes - Note completion Source: Recording, questions and answer key from The Official Cambridge Guide to IELTS, Test 8, Listening Part 4. © Cambridge University Press & Assessment. Used for educational practice. Explanations and evidence notes are written by Testmigo. ## The recording 8 minutes of audio. Practice it with the player on the page; the transcript is on the answers page. ## Questions ### Questions 31-40: Note completion Complete the notes below. Write ONE WORD ONLY for each answer. New Caledonian crows and the use of tools Examples of animals using tools some chimpanzees use stones to break nuts Betty (New Caledonian crow) made a **(31)** _____ out of wire to move a bucket of food Barney (New Caledonian crow) used sticks to find food New Zealand and Oxford experiment three stages: crows needed to move a **(32)** _____ in order to reach a short stick; then use the short stick to reach a long stick; then use the long stick to reach food Oxford research crows used sticks to investigate whether there was any **(33)** _____ from an object research was inspired by seeing crows using tools on a piece of cloth to investigate a spider design Barney used a stick to investigate a snake made of **(34)** _____ Pierre used a stick to investigate a **(35)** _____ Corbeau used a stick to investigate a metal toad the crows only used sticks for the first contact Conclusions of above research ability to plan provides interesting evidence of the birds' cognition unclear whether this is evidence of the birds' **(36)** _____ Exeter and Oxford research in New Caledonia scientists have attached very small cameras to birds' **(37)** _____ food in the form of beetle larvae provides plenty of **(38)** _____ for the birds larvae's specific **(39)** _____ composition can be identified in birds that feed on them scientists will analyse what the birds include in their **(40)** _____ [Practice online with a timer and instant marking](https://testmigo.com/ielts/listening/research-on-the-tool-using-skills-of-new-caledonian-crows) - [Answers and explanations](https://testmigo.com/ielts/listening/research-on-the-tool-using-skills-of-new-caledonian-crows/answers)