Help! my Lovebird is pooing liquid?

he poops liguid every 1-2 minutes or more. with a small amount of poo in it ... its clearish and im worried its been about 1-3weeks and I am getting worried there are no avain vets in the surrounding area and im only 15 what can i do ive had him for about 2 years hes very trained loves the outdoors is outside trained shoulder trained no's trix and more, But what could this meen I need an anwser the pooing is quite more frequent than my friends lovebird and he didnt used to do this.