 | William Bullock - 1824 - 576 Seiten
...surface, will change when seen in a front or oblique direction ; and as each lamina or fibre turns upon the axis of the quill, the least motion, when...Sound changes its expanded throat from the most vivid fire-colour to light green ; the TopazT throated does the same; and the Mexican Star changes from bright... | |
 | Josiah Conder - 1830 - 380 Seiten
...surface, will change when seen in a front or oblique direction ; and as each lamina or fibre turns upon the axis of the quill, the least motion, when...Sound changes its expanded throat from the most vivid fire-colour to light green; the Topaz-throated does the same; and the Mexican Star changes from bright... | |
 | James Bell - 1831 - 778 Seiten
...surface, will change when seen in a front or oblique direction ; and as each lamina or fibre turns upon the axis of the quill, the least motion, when...Sound changes its expanded throat from the most vivid firecolour to light green; the Тораи-throated does the same; and the Mexican Star changes from... | |
 | 1831 - 320 Seiten
...the surface, will change when seen in a front or oblique direction; and as each lamina or fibre turns upon the axis of the quill, the least motion, when...feathers to change suddenly to the most opposite hues. R 2 TRAVELS IN SOUTH AMERICA. IN our general view of the New World, we adverted to the characteristics... | |
 | James Bell - 1832 - 910 Seiten
...opposite hues. Thus the one from Nootka Sound changes its expanded throat from the most vivid firecolour to light green ; the Topaz-throated does the same ; and the Mexican Star changes from bright crimson to blue. The sexes vary greatly in the plumage in many of the species ; so much so, that it... | |
 | 1843 - 1040 Seiten
...surface, will change when seen in a front or oblique direction ; and as eachlamiiMi or fibre turns upon the axis of the quill, the least motion, when...the same ; and the Mexican Star changes from bright crimson to blue.' The females generally speaking are without the splendour of the males ; and are clad... | |
 | 1843 - 524 Seiten
...surface, will change when seen in a front or oblique direction ; and ;is each lamina or ubre turns upon the axis of the quill, the least motion, when...Sound changes its expanded throat from the most vivid tire colour to light green ; the Topaz-throated does the same ; and the Mexican Star changes from bright... | |
 | William Jardine - 1845 - 424 Seiten
...surface, will change when seen in a front or oblique direction ; and as each lamina or fibre turns upon the axis of the quill, the least motion, when...feathers to change suddenly to the most opposite hues." We have thought it proper to mention those different opinions; and though they do not entirely coincide... | |
 | 1847 - 698 Seiten
...the surface, will change when seen in a front or oblique direction, and as each lamina or fibre turns upon the axis of the quill, the least motion, when...feathers to change suddenly to the most opposite hues." How many bright eyes have I seen grow brighter as they looked at my " ruby-crested " and sapphirethroated... | |
 | Wonders - 1848 - 496 Seiten
...feather being of a different hue from the surface, the colour changes with every movement of the bird. Thus the one from Nootka Sound changes its expanded throat from the most vivid fire-colour to light green ; the Topaz-throated does the same, and the Mexican Star changes from bright... | |
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The reason is obvious; for the sides of the laminaB, or fibres of each feather, being of a different colour from the surface, will change when seen in a front or oblique direction ; and as each lamina or fibre turns upon the axis of the quill, the least... 
