In April 2011, I once again arrived on the Farallon National Wildlife Refuge to start another season of seabird research working with PRBO Conservation Science. In my seventh and perhaps last season, I decided to start a photo a day challenge for myself. The challenge is to share a new and interesting photo for each day I am on the island this year.
First Cassin's auklet chick weighed today! Once chicks are left alone by their parents, usually after about 10 days, some of them are weighed every five days so we can document how quickly they are developing. This tells us about their health and also about how much food is available for their parents to bring back to the colony. In years when food is scarce, chicks are underweight and slow growing. Jen was pretty happy to be able to hold her first Cassin's chick here. This guy weighed in at a healthy 58 grams.