ACCORDINGLY, AN OBJECT of the present invention is to provide {HEAD ~ a modularly stackable centrally ventilated bird house} that avoids {TAIL ~ the disadvantages} of the prior art 
avoids
ACCORDINGLY , AN OBJECT of the present invention is to provide { HEAD ~ a modularly stackable centrally ventilated bird house } that avoids { TAIL ~ the disadvantages } of the prior art
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH