Birds of Belize by H. Lee Jones, Dana Gardner

By H. Lee Jones, Dana Gardner

Определитель дает возможность идентификации всех fifty four видов птиц Белиза, известных на настоящее время. Виды сгруппированы по семействам, каждое их которых охарактеризовано по уникальным свойствам и особенностям поведения. Описание вида содержит всю информацию, необходимую для идентификации в природе: научные и обычные названия, особенности оперения, характеристики звуков и сигналов, местообитания, распространение и статус охраны. Полноцветные иллюстрации, выполненные известной художницей-анималистом Данной Гарднер, представляют самцов и самок, молодых и взрослых, типичные и альтернативные варианты окраски, способствуют визуальной идентификации, в то время как 234 карты показывают распространение и сезонность. Книга снабжена детальной библиографией.
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Sample text

The temporal spot is well discernible, although occasionally it is absent. There are 3–4 transverse dark stripes on the shin and thigh. Throat coloration varies from complete absence of a marbled pattern on a pale background to entirely covered with dense spots. Males have internal vocal sacs, and their throat is blue during the breeding season. A nuptial pad on the 1st finger has four lobes. Variability of morphometric characters of frogs from the region falls within the limits of variations in the species range.

22. Distribution of Rana temporaria in Belarus. THE AMPHIBIANS OF BELARUS 41 spot and has a indistinct edge. The shape and degree of the chevron-shaped spot is quite variable. The head pattern is well-developed. The temporal spot is well discernible, although occasionally it is absent. There are 3–4 transverse dark stripes on the shin and thigh. Throat coloration varies from complete absence of a marbled pattern on a pale background to entirely covered with dense spots. Males have internal vocal sacs, and their throat is blue during the breeding season.

Striata and maculata morphs). The morphological features of the Pool Frog include relative length of hind leg and form and dimensions of the inner metatarsal tubercle. 04 times. Thus, from the Pool Frog to the Marsh Frog the relative length of the hind legs increases, and the relative size of the inner metatarsal tubercle decreases. These morphological features allow field identification of green frogs. int (Tsaune, 1987). The degree of variability of particular characters in the Pool Frog is less than in the two other species of this group.

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