In this Paul Kirtley Podcast I return to Q&A, answering listener questions on a range of topics - Is there an issue with collecting water from streams or ponds containing poisonous plant species such as hemlock water dropwort, Oenanthe crocata? What are the benefits or disadvantages to a woodland if it is being used for bushcraft? How many knives is too many knives? Is a belt knife and a pocket knife enough for a wilderness trip? How to sharpen spoon knives? How to tell the difference between birch species? What are the alternatives to birch bark for lighting fires with sparks from a ferro rod?