Lesser Swallow-tailed Swift (Panyptila cayennensis) Science Article 2
nest of the Cayenne Swift (Punyptila cayennensis) is one of the most remarkable structures built by any bird in tropical South America. Although the nest has been known for some time, I am not aware of the existence of satisfactory photographs showing a nest in situ.
F. HAVERSCHMIDT, Wilson Bulletin, \ 01. 66, No. 1