I'm sure this question has been asked a million times (but the word "poo" is too short for the search function)

Blake has had some weird green poos the last few nappies. The first was quite dark and a lot thicker in consistency than his usual poo - it reminded me of lawn clippings. Then the latest was avocado green and quite dry (compared to his usual pumpkin soup efforts). They are not "frothy" or "mucousy" which seem to be referred to when I google.

Any poo guru's out there?

ETA: BTW he's fully breastfed