I find this book extremely useful because it not only tells us what the bird eats and where it can be found, but it gives a brief narrative description of the bird's behaviour. One bird will startle and run away while another will keep dabbling in the mud until an observer gets close.
The colour photos and line drawings are excellent and show the bird in its environment. As a field guide, the book is tough in hardback, but might get a little heavy if carried all day.
I highly recommend it and have added a new book to balance any changes of habitat that have occurred, such as the ibis moving into Ireland. A Field Guide to The Birds of The British Isles by Elizabeth Balmer. That one has a different method of presentation so the two are complimentary.