I do some wood working myself(nothing too crazy jsut enough to have been on th eback cover of just some random nati.. i mean global scale wood magazine) and heres what i can tell ya, pressure treated, chem treated of any kind, some reclaimed woods, most plywoods and the like such has chip board are gonna pose a problem to most animals and even humans given the kinda circumstances most back yard poultry are in, Heat Lamps and Humidity. The combo of the two can actually "activte" a minute to moderate vaporous emmision of potionally toxic fume gas-off. this can cause cancers, tumors, and even some cases of more sudden onset poisoning. SO if its been glued or stained chemically or treat/aletere in our humanistic extreme kinda messures then it can pose a possible issue. the reclaimed wood can also be a threat if it was not properly "reclaimed" and instead they kinda half-assed it (sorry) and forewent any proper sterilization and etc. this can lead to fungi or mold etc issues not too mention various sharp objects and potentional preexisting nests, hives, etc of insects, bacteria, gross stuff in general , rats and even an army of Greek Duck warriors hiding inside to attck your existing flock, idk.
lastly ducks forsure are not super good for oak, something bout it is toxic and cedar can be to all too. hell and saw dust can be from any tree, wood workers and any who breath it in should wear masks or have an air scrubber that can clean down to 5 micron. same for animals , they are our loved ones too so protect them too! i can tell more this was too long alreayd .. ojh cedars is good to build with so is redwood i thin .. cause these are a type of wood tht is damn near impervious to mold imildew, also its like a natural bug be goone but DONT USE FOR CHICKS OR DUCKLINGS too sensitive and can cause serious harm
