The answers are divided into 2 categories - birds and bees.
The bees are words that begin with B.
The birds are found by taking the 1st letters of the other words.
When you've completed a bird, there is a line where all three words begin with a C.
All the birds have the same 'shape', so it will be quite useful if you plot where the Bs ( or the birds) are in any one section, because the same pattern is repeated for all of them. (I'm not quite sure about the last one - I seem to remember it was slightly different)
Hope this helps.