what is the largest urban center present in the above mentioned place?
Mexico city, New York City and São Paulo.
Americas

In accordance with these definitions, the three largest population centers in the Americas are: Mexico City, anchor to the largest metropolitan area in the Americas; New York City, anchor to the largest urban area in the Americas; and São Paulo, the largest city proper in the Americas. All three cities maintain Alpha classification and large scale influence
what bird builds its nest on the ground Killdeer. where is it found? In the Americas. how does it look like? It has a short, thick, and dark bill, flesh-colored legs, and a red eye ring. Its are mostly brown with rufous fringes, its cap, back, and wings being the former color. It has a white forehead and a white stripe behind the eye, and its lores and the upper borders to the white forehead are black. how does it responds to its predators? The parents use various methods like the "broken-wing display" to distract predators during the breeding season.
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Americas [SEP] Largest urban centers
There are three urban centers that each hold titles for being the largest population area based on the three main demographic concepts: In accordance with these definitions, the three largest population centers in the Americas are: Mexico City, anchor to the largest metropolitan area in the Americas; New York City, anchor to the largest urban area in the Americas; and São Paulo, the largest city proper in the Americas. All three cities maintain Alpha classification and large scale influence.