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The Macmillan Field Guides to Bird Identification are two small bird field guides. Volume 1, The Macmillan Field Guide to Bird Identification , illustrated by Alan Harris and Laurel Tucker , with text by Keith Vinicombe , was originally published in 1989, covered British birds.
Koeleria macrantha is a species of grass known by the common name prairie Junegrass in North America and crested hair-grass in the UK. It is widespread across much of Eurasia and North America . It occurs in many habitat types.
Andropogon virginicus is a species of grass known by several common names, including broomsedge bluestem, yellowsedge bluestem and (in Australia, because it was introduced to that country after being used as packaging for bottles of American whiskey) whiskey grass.
It often nests in colonies, some being quite large. Bird houses are also a suitable nesting site. Four to seven eggs are in a clutch. This bird is a permanent resident in much of its range. Northern birds migrate in flocks to the Southeastern United States. The distribution of the common grackle is largely explained by annual mean temperature ...
We talked with an expert at the Cornell Lab of Ornithology to find out.
The birds also take seeds from the grass ears directly. They prefer grains of 1–2 mm (0.04–0.08 in) in size. [7] Red-billed queleas feed mainly on grass seeds, which includes a large number of annual species from the genera Echinochloa, Panicum, Setaria, Sorghum, Tetrapogon and Urochloa. [24]
They feed on the seeds of spinifex and grass, and sometimes ripening wheat. [22] [33] [5] [6] Budgerigars feed primarily on grass seeds. [30] [5] The species also opportunistically depredates growing cereal crops and lawn grass seeds. [34] Due to the low water content of the seeds they rely on the availability of freshwater. [5]
The red-cheeked cordon-bleu is a granivore, feeding principally on grass seeds, but also on millet and other small seeds. [18] It is also known to feed sporadically on beeswax . [ 19 ] Larger granivores, such as the pin-tailed whydah will chase cordon-bleus from food sources, limiting the feeding opportunities of the smaller birds and affecting ...