unsafe plants

Hello Everyone I'm building a large enclosure for my lovebirds and I have compiled a list of plants that I have loosely found to be non-toxic to my lovebirds. Some of these plants there was very few information and my intention isn't too feed these plants to my lovebirds but to dress up the...

I have read here on these forums and a couple of other places that pothos is toxic for birds. Then I ran across this website listing pothos as safe for birds, List of Safe Plants for Your Bird. . Why would they say it is safe?