Bird Watching: The Robin Condominium, 1 by galega

galega wrote:
Sometime last week, I noticed my indoor cats surprisingly absent from their usual perches in the south facing windows. Looking around the house for them, I noticed that both of them were oddly stationed at a side door looking on, transfixed, while a parade of Robins took turns ferrying nesting materials to several alcoves under an upper deck on the house. At first glance it appeared as though the robins just couldn't agree on where to build, so were building everywhere. After days of looking on, it now seems as though there are several different pairs doing the construction. At this point there are five pretty developed nests right next to each other along the beam.

Does this seem like odd robin behavior?