The text details scientific studies showing that corvids possess skills once thought exclusive to primates, including:
Jane Goodall's 1960 work showed weren't the only toolmakers; crows make tools like hooks and spears . Study Tips for this Passage the intelligence of corvids ielts reading answers
— Researchers wore a mask to conceal their true identity from the crows. The text details scientific studies showing that corvids
The story continues, moving from physical tools to mental capabilities. The IELTS text often describes the . These birds are hoarders; they bury food (caching) to eat later. the answer is Not Given .
The text might say corvids have a large brain-to-body ratio. A question might say they have the "largest brains of all birds." If the text doesn't explicitly compare them to every other bird, the answer is Not Given .
