Outside its breeding range, it will occasionally stray, from southernmost California to Texas , Georgia , and Louisiana. Description[ edit ] Adults are colored predominantly a metallic green on their upperparts and breast. The undertail coverts are predominantly white. The tail is darkly colored and slightly forked. The bill of the male is straight and very slender.
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Glossary Nearctic living in the Nearctic biogeographic province, the northern part of the New World. This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends.
Synapomorphy of the Bilateria. Vegetation is dominated by stands of dense, spiny shrubs with tough hard or waxy evergreen leaves. May be maintained by periodic fire. In South America it includes the scrub ecotone between forest and paramo. Vegetation is typically sparse, though spectacular blooms may occur following rain. Deserts can be cold or warm and daily temperates typically fluctuate.
In dune areas vegetation is also sparse and conditions are dry. This is because sand does not hold water well so little is available to plants. In dunes near seas and oceans this is compounded by the influence of salt in the air and soil. Salt limits the ability of plants to take up water through their roots. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a now extinct synapsid ancestor; the fossil record does not distinguish these possibilities.
Convergent in birds. Iteroparous animals must, by definition, survive over multiple seasons or periodic condition changes.