1. Barn owl roosting in conifer;Anderson;Br. Birds,1946
2. Barn owls roosting on stumps in a reed bed;Ash;Br. Birds,1954
3. Barn owls roosting in conifers;Ash;Br. Birds,1946
4. Roost selection by spotted owls;Barrows;Condor,1981
5. The Applied Environmetrics Meteorological Tables;Beer,1991