KANSAS CITY, Mo. (AP) — The Kansas City Zoo is celebrating the birth of two baby penguins. The zoo says the Gentoo chicks hatched earlier in the week and are being nourished on regurgitated herring and trout at the Helzberg Penguin Plaza. They say one of the siblings is being cared for by its biological parents and the other is in the care of foster parents. Spokeswoman Julie Neemeyer tells the Kansas City Star it's common for only one chick to survive in the wild, which is why one of the babies was entrusted to another pair of penguins. Zoo officials say the chicks are dependent on their parents for up to three months. They say a third penguin egg is expected to hatch by the end of the year. (Click here to watch the penguins via the Penguin Cam.)