yes
the colour of a robins nest is red
Petco and Petsmart has them
Parakeets, robins, falcons, and some song birds!
Joanne Robins Barton has written: 'Out of the Robins nest'
a box
Robins don't give birth they hatch eggs.
in nest in trees.
Yes
I don't know any animal that is really fussy about where to have sex - including parakeets.
In some areas, like in the south, robins are double brooded, but build a new nest for the second brood.
The parakeets will lay their eggs in a nest that they build themselves. The parakeets will sit on the eggs until all have hatched. The eggs should hatch after 18 days.
European robins nest in all sorts of places, often thick hedges. They also use old discarded kettles, sheds and letter boxes. As far as I can tell from my reading, American robins are similar.