Pileated woodpeckers are the largest woodpecker species found in North America. They use their long, chisel-like bills to drill holes in rotten wood to get at carpenter ants and other insects. The holes they make are usually rectangular and sometimes so deep they even cause small trees to weaken or break in half! But even this large, skilled insect hunter has to learn from its parents how to find a meal. In the nest, both parents feed nestlings by regurgitation. Young pileated woodpeckers leave

1963: Campers at Yosemite National Park, California spoke to Fyfe Robertson about the appeal of sleeping under canvas. Families were pitched up in the busy valley campsites with modern facilities, while those more adventurous went to the solitude of higher ground. Clip taken from Tonight, originally broadcast on 9 September, 1963. | BBC Archive