Bird field guides – an essential bit of equipment
You will find that as your birdwatching hobby takes off you will accumulate a collection of bird field guides. You will start off with a field guide to the birds of Britain, for example, which will be great until a newer field guide to Britain comes out. After adding that to your collection you will then add a field guide to the birds of Europe or perhaps Spain. This is how it goes and there is nothing wrong with it, apart from that special person who you share your life with who will be frowning and saying something along the lines of “not another bird book.”
You will also find that some countries have numerous field guides available while you may need to do some research to find something useful for another country. I recommend that you always use a recently published field guide for several reasons: