The other bowerbirds are polygynous and make various forms of bowers or create stages for mating. One study revealed the catbirds have a smaller brain for their body size compared to the bower-building species.
Other male bowerbirds engage in polygynous behavior, constructing elaborate structures for courtship displays. A study found that catbirds possess relatively small brains relative to their body size when compared to species known for their complex nesting behaviors.