| Publication Type: | Journal Article |
| Year of Publication: | 1968 |
| Authors: | Cairns, J |
| Journal: | Ibis |
| Volume: | 110 |
| Issue: | 4 |
| Date Published: | 1968 |
| ISBN Number: | 1474-919X |
| Keywords: | Accipitridae, Circaetus, Circaetus gallicus, Spilornis, Spilornis cheela |
| URL: | http://dx.doi.org/10.1111/j.1474-919X.1968.tb00064.x |
| Short Title: | Ibis |