New on 500px : Memorial JK by AndrSiqueira1 by AndrSiqueira1

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New on 500px : TV tower – Brasília by mareantoniazzi by mareantoniazzi

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New on 500px : concha acústica by EdisonZanatto by EdisonZanatto

Quartel General do Exército – Brasilia – Brasil

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New on 500px : Memorial JK by Armandomendes by Armandomendes

This is a pic of a monument dedicated to the former President of Brazil Juscelino Kubitschek.

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New on 500px : Vermilion Flycatcher by BertrandoCampos by BertrandoCampos

Príncipe (Pyrocephalus rubinus)

The Vermilion Flycatcher is a vibrantly colored inhabitant of open woodland and pastureland from the American Southwest to south to central Argentina. Male Vermilion Flycatchers have a bushy brilliant red crown and underparts, and a slate black mask, upperparts and tail. Females differ greatly in plumage from males, with a grayish-brown crown and upperparts, dark lores, a whitish supercilium, and white breast and underparts with fine gray streaks. In central Peru, especially within the city of Lima, there is an unusual local dusky color morph, that occurs in both sexes; this dusky morph exists alongside Vermilion Flycatchers with the standard plumage. Vermilion Flycatchers often perch with erect posture in the lower branches of a tree or shrub. They frequently wag their tail, and sally out to catch insects in the air or on the ground. Vermilion Flycatchers have a variety of different migratory patterns depending on their breeding range. Populations from the southern United States and northern Mexico migrate south to Central America, while populations from Argentina and Paraguay migrate as far north as Colombia during the austral winter.

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New on 500px : Sedge Wren by BertrandoCampos by BertrandoCampos

Corruíra-do-campo (Cistothorus platensis).

Formerly the Short-billed Marsh Wren, this species was renamed Sedge Wren to better distinguish it from the closely related Marsh Wren (Cistothorus palustris) by emphasizing habitat differences between the two species. The Sedge Wren is a broadly distributed, polygynous species, with many disjunct populations occurring in North, Central, and South America.

The Sedge Wren appears to be one of the most nomadic terrestrial birds in North America, with breeding concentrated in widely different portions of its range at different times of the breeding season. A first period of nesting is concentrated primarily in the upper-midwestern United States (Wisconsin, Minnesota, North Dakota) and adjacent Canada (Saskatchewan) and occurs during late May and June. A second, more widespread, nesting period occurs later in the summer (July¿September), with birds expanding out into southern (for example, Nebraska, Kansas, Missouri) and northeastern (for example, Vermont, Massachusetts) portions of the breeding range.

Sedge Wren habitats are characterized by vegetation and soils that are highly susceptible to drying or flooding caused by annual and seasonal variation in rainfall. Vegetative succession or disturbance caused by grazing, haying, and planting also impart a highly transitory character to Sedge Wren nesting habitats. This habitat instability apparently has led to high mobility and low site tenacity in many areas. The Sedge Wren’s communication system also appears to be adapted to high population mobility, suggesting that opportunistic breeding has occurred for a long time rather than being of recent origin, such as in response to recent agricultural changes or habitat loss.

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