| 单词 | bicoloured |
| 例句 | Food was present beneath bicoloured discs and absent below discs composed of a single colour. Birds perceive colours in categories 2018-07-31T04:00:00Z DESCRIPTION.—Fur of head and back long and dense, bicoloured; base black, tips brown; underneath the hairs are two-thirds black, with the remaining upper third pure white. Natural History of the Mammalia of India and Ceylon This training scheme allowed the authors to test how well the birds recognized colour differences by their ability to identify bicoloured discs when searching for food. Birds perceive colours in categories 2018-07-31T04:00:00Z The wells of the device contained seeds covered with bicoloured discs and empty wells that were either uncovered or covered by single-coloured discs of each of the colours on the bicoloured discs. Birds perceive colours in categories 2018-07-31T04:00:00Z DESCRIPTION.—Fur fine woolly, long, bicoloured; above light shining brown, paler below; the free edge of the interfemoral membrane margined with small papillæ. Natural History of the Mammalia of India and Ceylon |
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