7 x 9 in. (17.8 x 22.9 cm.) Subscribe now to view details for this work, and gain access to over 18 million auction results. Purchase One-Day Pass ...

One aspect of studying birds is this whole concept of nest building and egg laying ... The nest of a ruby-throated hummingbird is a work of art ... an outer coating of lichens is attached to a wall of ...

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The scope of Birds and Us is impressive, beginning 8,000 years ago with Neolithic cave art and ending on a 2018 undergraduate trip to Bempton Cliffs. As BTO Vice-president Prof Tim Birkhead takes us ...