| Citation | Fordham, R.A. 1964 Breeding biology of the southern black-backed gull. II: Incubation and the chick stage. Notornis 11(2):110-126. |
| DOI / ISBN | |
| Paper URL | http://notornis.osnz.org.nz/system/files/Notornis_11_2.pdf |
| Ref. No. | 101506 |
| Language | English |
| Usage | used in part |
| Comments on the publication | |
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