| Citation | Ralph, C.J. 1994 Evidence of changes in populations of the Marbled Murrelet in the Pacific Northwest. In Jehl, J.R. Jr and Johnson, N.K. (eds.), A century of avifaunal change in Western North America. Studies in Avian Biology 15:286-292. |
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| Ref. No. | 4520 |
| Language | English |
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