A Gull on the Roof by Derek Tangye or Beasts in my Belfry by Gerald Durrell, but I wonder whether you have seen these statuesque juvenile Barn Owls in the stone quatrefoil. Do take a look here at the amazing shot by photographer, Richard Brooks. The church is Christ Church, Fulmodeston in Norfolk, the beautiful county where I lived during my teenage years.
P.S. I was browsing through the Durrell Wildlife Conservation Trust site for this post, when I came across a curious feature on the Mountain Chicken. How much do you know about this threatened creature? You can read about it here.
P.P.S. On the subject of wildlife conservation and literature, do read about Wildlife Poetry and the Born Free Foundation Poet-in-Residence, Richard Bonfield. Many of us have followed Richard's work over the years in magazines like Reach Poetry (Indigo Dreams Press).