The problem was that while they were well documented at some sites, usually the ones with the very nice animals, there was also a large number of them where it was very vague -- there wasn't a lot of description or detail.
Проблемът беше, че макар и добре  документирани на някои места, обикновено онези  с най-хубавите животни, имаше също и много от тях, които бяха доста неясни - без много описания или подробности.