Monk Parakeet's are species of temperate South America. The most wide-spread parrot in south Florida. Some also found in cities of North-east, Midwest, and Texas. These were photographed in Missouri City, Texas near a residential area and city park. This one nest in high power electical towers live with a colony of about 12 parakeet's.

Source: Wikipedia, the free encyclopedia ( http://en.wikipedia.org/wiki/Monk_Parakeet)
The Monk Parakeet or Quaker Parrot (Myiopsitta monachus) is a species of parrot, the only member of the monotypic genus Myiopsitta. It originates from the temperate to subtropical areas of Argentina and the surrounding countries in South America. Self-sustaining feral populations occur in many places, mainly in North America and Europe.

The Monk Parakeet is the only parrot that builds a stick nest, in a tree or on a man-made structure, rather than using a hole in a tree. This gregarious species often breeds colonially, building a single large nest with separate entrances for each pair. In the wild, the colonies can become quite large, with pairs occupying separate "apartments" in nests that can reach the size of a small automobile. These nests can attract many other tenants including birds of prey such as the Spot-winged Falconet, ducks such as the Speckled Teal and even mammals. Their 5-12 eggs hatch in about 24 days.

The lifespan of Monk Parakeets has been quoted to be from 15-20 years,[6] to 25-30 years;[7] the former might refer to average lifespans in captivity and/or in the wild, while the latter is in the range of maximum lifespans recorded for parakeets.