I don't really think that it's meant this way, but it almost smacks of an Electra type complex where the son is a little TOO into his mother. The first lines about splitting her in two do seem to reference the genital thing, but I think if you look at it a little deeper, it's contrasted with imagery of nature. So, it could be a giant metaphor like man vs. nature, we love it deep down but we almost "split it into two". Since Bowerbirds are so into natural imagery and the environment, the second explanation seems more plausible.
I don't really think that it's meant this way, but it almost smacks of an Electra type complex where the son is a little TOO into his mother. The first lines about splitting her in two do seem to reference the genital thing, but I think if you look at it a little deeper, it's contrasted with imagery of nature. So, it could be a giant metaphor like man vs. nature, we love it deep down but we almost "split it into two". Since Bowerbirds are so into natural imagery and the environment, the second explanation seems more plausible.