Architectural Wonders....

[Condor]

The Sociable Weaver Bird nest, Africa...
http://i493.photobucket.com/albums/rr298/bolivia_04/Wild%20Life/theSociableWeaverBirdnest4_zpsc199eba4.jpg (http://s493.photobucket.com/user/bolivia_04/media/Wild%20Life/theSociableWeaverBirdnest4_zpsc199eba4.jpg.html)

http://i493.photobucket.com/albums/rr298/bolivia_04/Wild%20Life/theSociableWeaverBirdnest3_zpsf068931d.jpg (http://s493.photobucket.com/user/bolivia_04/media/Wild%20Life/theSociableWeaverBirdnest3_zpsf068931d.jpg.html)

http://i493.photobucket.com/albums/rr298/bolivia_04/Wild%20Life/theSociableWeaverBirdnest2_zps7c0bfa82.jpg (http://s493.photobucket.com/user/bolivia_04/media/Wild%20Life/theSociableWeaverBirdnest2_zps7c0bfa82.jpg.html)

http://i493.photobucket.com/albums/rr298/bolivia_04/Wild%20Life/theSociableWeaverBirdnest_zps7580f33a.jpg (http://s493.photobucket.com/user/bolivia_04/media/Wild%20Life/theSociableWeaverBirdnest_zps7580f33a.jpg.html)

http://i493.photobucket.com/albums/rr298/bolivia_04/Wild%20Life/theSociableWeaverBirdnest5_zps8351ba54.jpg (http://s493.photobucket.com/user/bolivia_04/media/Wild%20Life/theSociableWeaverBirdnest5_zps8351ba54.jpg.html)

[Condor]

Crow's nest made out of hangers...Very intelligent and strong "pests"....I have seen one chew his way out of a cage...
http://i493.photobucket.com/albums/rr298/bolivia_04/Wild%20Life/crow-nest-hanger-62_zpsf3e1308f.jpg (http://s493.photobucket.com/user/bolivia_04/media/Wild%20Life/crow-nest-hanger-62_zpsf3e1308f.jpg.html)

http://i493.photobucket.com/albums/rr298/bolivia_04/Wild%20Life/crow-nest-hanger-12_zpsa6260f0d.jpg (http://s493.photobucket.com/user/bolivia_04/media/Wild%20Life/crow-nest-hanger-12_zpsa6260f0d.jpg.html)

http://i493.photobucket.com/albums/rr298/bolivia_04/Wild%20Life/crow-nest-hanger-26_zps1bb9f0dc.jpg (http://s493.photobucket.com/user/bolivia_04/media/Wild%20Life/crow-nest-hanger-26_zps1bb9f0dc.jpg.html)

http://i493.photobucket.com/albums/rr298/bolivia_04/Wild%20Life/crow-nest-hanger-52_zpsc284b61d.jpg (http://s493.photobucket.com/user/bolivia_04/media/Wild%20Life/crow-nest-hanger-52_zpsc284b61d.jpg.html)

http://i493.photobucket.com/albums/rr298/bolivia_04/Wild%20Life/crow-nest-hanger-42_zps907598c3.jpg (http://s493.photobucket.com/user/bolivia_04/media/Wild%20Life/crow-nest-hanger-42_zps907598c3.jpg.html)

[1boxman]

Ah...recycling !!!