Search results
Results from the WOW.Com Content Network
A diagram of a bird egg. Eggs of various birds, labelled (Trinity College Zoological Museum, Dublin) Bird eggs are laid by the females and range in quantity from one (as in condors) to up to seventeen (the grey partridge). Clutch size may vary latitudinally within a species. Some birds lay eggs even when the eggs have not been fertilized; it is ...
The northern lapwing is a 28–33 cm (11–13 in) long bird with a 67–87 cm (26–34 in) wingspan and a body mass of 128–330 g (4.5–11.6 oz). [10] It has rounded wings and a crest. It is also the shortest-legged of the lapwings. It is mainly black and white, but the back is tinted green.
Ostrich egg. Ostrich eggs in a nest on a farm. The egg of the ostrich (genus Struthio) is the largest of any living bird (being exceeded in size by those of the extinct elephant bird genus Aepyornis). The shell has a long history of use by humans as a container and for decorative artwork, including beads. The eggs are not commonly eaten.
In the wild, eggs are typically laid at 3 to 5 day intervals, with records in captivity of intervals of up to 7 or 10 days. [54] [55] [56] The eggs vary from all white to white with cinnamon or brown spots and blotches. Scottish eggs averaged 75 by 59 mm (3.0 by 2.3 in) in size and weigh about 145 g (5.1 oz). [1]
Avian clutch size. Great Black-backed Gull (Larus marinus), small clutch. Clutch size refers to the number of eggs laid in a single brood by a nesting pair of birds. The numbers laid by a particular species in a given location are usually well defined by evolutionary trade-offs with many factors involved, including resource availability and ...
The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.).
Published in 1980 by Rigby of Adelaide, South Australia, in its series of field guides to Australian natural history, the book is 190 mm high by 130 mm wide. It consists of three parts; Part One contains general information; Part Two contains separate keys to the identification of nests and eggs, as well as the colour plates that illustrate ...
Muscicapa carolinensisLinnaeus, 1766. Turdus felivoxVieillot, 1807. A Gray catbird stands in the grass. The gray catbird (Dumetella carolinensis), also spelled grey catbird, is a medium-sized North American and Central American perching bird of the mimid family. It is the only member of the " catbird " genus Dumetella.