Migratory Birds of Madeira and the Canaries. 215 



name Columba laurivor-a, which name is intended to supplant 

 the less classical appellation of C. trocazoi Dr. Heineken. Two 

 errors were here committed — one in placing two very distinct 

 birds under the same name, the other in the endeavour to alter 

 a name already established. In dealing with these errors, how- 

 ever, we are still able to use the name laurivora, by applying it 

 to the bird found in the first mentioned of the localities cited by 

 Webb and Berthelot, viz. the Canaries. 



We thus have a name for the Madeira bird about which there 

 can be no doubt, and also a name for a Pigeon from the Canaries. 

 Webb and Berthelot^s plate shows us what this latter bird is. 

 The upper figure undoubtedly represents Columba trocaz of 

 Heineken; the lower, as I now interpret the plate, Columba 

 laurivora, Webb and Berthelot. 



Bonaparte, in his ' Conspectus Avium,^ ii. p. 45, considers 

 that both Heineken's bird and that of Webb and Berthelot 

 belong to one species, which he calls Trocaza trocaz, to which 

 the locality " Ins. Madeira " is assigned, the mention of the 

 Canaries by Webb and Berthelot being overlooked. This view, 

 however, is altered in the ' Comptes Rendus,' xliii. (1856), 

 pp. 837, 948, where Prince Bonaparte justly considers that the 

 birds figured in the plate of the ' Ornithologie Canarienne ' 

 belong to two species. He applies the name Trocaza bouvryi to 

 the upper figure, retaining that of laurivora for the lower. The 

 former name mtist therefore be placed as a synonym of C. trocaz. 

 Both the species are figured in the ' Iconographie des Pigeons,' 

 tt. 69, 70, C. laurivora being also figured by Knip, t. 43. 



Dr. Bolle, in his first paper in the ' Journal f'iir Ornithologie,' 

 1855, p. 171, appears to have followed previous authors in con- 

 fusing the Canarian with the Madeiran bird. He obtained no 

 specimens, though he says he saw what he calls the smaller bird 

 in Palma. In his second article in the same journal (1857, 

 p. 324, et seq.), two species are recognized. The first is called 

 Columba laurivora ; and it would appear that this name is applied 

 to Webb and Berthelot's bird, as now restricted to the so-called 

 female of those authors. The other is called, with doubt, C. 

 bouvryi, Bp. But C. bouvryi, Bp., is C. trocaz, Hein,, the Ma- 

 deiran bird, the occurrence of which in the Canaries there is no 



