Translation--"all I have is unverifiable anecdote".  Sorry, based on my own experience and involvement in field research of animal population and distribution studies, biologists have accumulated quantitative data since long before we had computers.

Having said that, I'll not be trusting your unverified, anecdotal 'observations'.  Anecdote has become a euphemism for LIE among cat-nutters.  It's unavoidable because their claims aren't consistent with reality and their 'humane' exploitation of animal misery is indefensible.