We have added more to our fairly new...
SAFE AND TOXIC WOODS FOR PET BIRDS web page.
It's available at
This is not only useful for bird people - but if landscape people have bird owners, they could recommend some of the safe trees so bird owners could use the wood for perches. Tree limbs are better than dowels, because branch diameters vary, which is better for birds.
The pesticide use on a property can affect what is toxic or non-toxic for birds, but without chemicals, there are a lot of safe tree wood for birds like parrots, conures, parakeets, cockatiels and cockatoos.