| Publication Type: | Book Chapter |
| Year of Publication: | 1956 |
| Authors: | T. Clay, Williamson K. |
| Editor: | H. P. W. Hutson |
| Book Title: | The ornothologists' Guide. Especially for Overseas Visitors |
| Publisher: | British Ornithology Union |
| City: | London |
| Publication Type: | Book Chapter |
| Year of Publication: | 1956 |
| Authors: | T. Clay, Williamson K. |
| Editor: | H. P. W. Hutson |
| Book Title: | The ornothologists' Guide. Especially for Overseas Visitors |
| Publisher: | British Ornithology Union |
| City: | London |