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The common ground dove is North America's smallest and one of the world's smallest by mass. This species ranges from 15–18 cm (5.9–7.1 in) in length, spans 27 cm (11 in) across the wings, and weighs 26–40 g (0.92–1.41 oz). [8]
The reasons are the two cold currents: California Current at Northeast and Humboldt Current along the equatorial line. The Hawaiian Islands (in white) have higher temperatures than the equatorial line near the coast of South America because cold waters from upwelling along the California coast are farther away than the thermal equator, and ...
Kirtland's warbler (Setophaga kirtlandii), also known in Michigan by the common name jack pine bird, [3] [4] or the jack pine warbler, is a small songbird of the New World warbler family . Nearly extinct just years ago, populations have recovered due to the conservation efforts of Phil Huber and the U.S. Forest Service .
Eurasian and red-breasted nuthatches are lowland birds in the north of their extensive ranges, but breed in the mountains further south; for example, the Eurasian nuthatch, which breeds where the July temperature range is 16–27 °C (61–81 °F), is found near sea level in Northern Europe, but between 1,750 and 1,850 m (5,740 and 6,070 ft ...
Climate change has raised the temperature of the Earth by about 1.1 °C (2.0 °F) since the Industrial Revolution.As the extent of future greenhouse gas emissions and mitigation actions determines the climate change scenario taken, warming may increase from present levels by less than 0.4 °C (0.72 °F) with rapid and comprehensive mitigation (the 1.5 °C (2.7 °F) Paris Agreement goal) to ...
The bananaquit is a small bird, although there is some degree of size variation across the various subspecies. Length can range from 10 to 13 cm (3.9 to 5.1 in). [ 18 ] [ 19 ] Weight ranges from 5.5 to 19 g (0.19 to 0.67 oz).
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The speed at which small fish (which along with krill are the auk's principal prey) can swim doubles as the temperature increases from 5 to 15 °C (41 to 59 °F), with no corresponding increase in speed for the bird. The southernmost auks, in California and Mexico, can survive there because of cold upwellings. The current paucity of auks in the ...