Protect the Nest.

Originally there were two Rodans in my G-universe, one male and one female. Their main food reasource were the huge swarms of Meganulon and Meganula.
One day when they hunted a swarm of Meganula, the fleeing insects lead them to an american city. In the hunt for food the pair of Rodan destroyed most of the metropole. After a wellorganised deffensive attack from the US millitary, they actually managed to kill the male Rodan. The female escaped back to their island were she started to build her nest.

*A couple of months passed*
Godzilla, who got closer and closer to Japan by each passing day, resurfaced just next to Rodan's island. Rodan was determind to protect her eggs. Using a hit and run technique she tried to force Godzilla to leave her island. Unable to use any melee attacks on her, Godzilla instead started to use his atomic breath. After a couple of misses he managed to hit her wing wich caused her to crash to the ground. When she was unable to make it into the air again, Godzilla casually walked up next to her and finnished the job.
During their battle, all of Rodan's eggs where destroyed...except for one...