User:Ala culta
文明鸟 (Ala culta) 是未来一种鸟，也是其中唯一发展出文明的成员。
身体形态
文明鸟是一种体型中等的鸣禽，拥有较短的三角形直喙。它们的每个翅膀上有20根飞羽，包括10根初级飞羽、6根次级飞羽和4根三级飞羽。Unlike most perching birds, they have 10 rectrices on their tails. The species has a very diverse genetic pool, with a great variety of plumage types among billions of its specimens over the planet.
习性生态
文明鸟是一种杂食性动物，其常见食物包括种子、果实、树叶等植物部位，以及鱼类、哺乳类和其他蜥类等动物。它们的胃可以容纳相当于自身重量25%的食物。
认知能力
移动方式
文明鸟拥有不俗的行动能力，且适应性极强。前肢支撑的羽毛形成一对短而圆的翅膀，使得它们在障碍物间灵活穿梭。强壮的手臂能让它们的飞行速度达到每秒25米。 but that would still make them easy to be caught up by falcons when in the open air. Long legs that are up to 50% their body length and exceptionally thick leg bones having circumferences of up to 80 mm allow them to effortlessly walk on land and reach speeds of 10 m/s.
体型大小
文明鸟是已知最大的雀形目成员，成年平均重量高达2.5千克，最大个体重量据推测甚至能达到4千克。巨大的体型使它们免受多数猛禽的威胁，但真雕属、海雕属和角雕属的成员依旧会对它们构成威胁。
| 测量标准 | 测量结果 |
|---|---|
| 长度 (喙尖 - 尾羽) | 100 cm |
| 长度 (喙尖 - 尾椎) | 64 cm |
| 宽度 (最长飞羽间) | 160 cm |
| 宽度 (远端指骨间) | 128 cm |
| 高度 (地面 - 头顶) | 80 cm |
| 高度 (地面 - 荐椎) | 50 cm |
| 头骨 (喙尖 - 顶骨) | 20 cm |
| 颚骨 (喙尖 - 隅骨) | 16 cm |
分类位置
Ala culta is the only representative of the family Alaidae, which is believed to be a close relative to the genus Corvus, and inherited the high intelligence alongside the superior ability of tool-making from their common ancestor.