The Chicks are now 21 and 22 days old respectively. They actually are fairly close in size to one another so are likely the same gender. By this time males typically appear significantly smaller than females. The slight discrepancy is most likely due to the 1+ day difference in the timing of their hatching.
Over the coming days we should see their level of activity begin to increase dramatically. The will spend a lot more time walking about and exploring their nest ledge (fire escape.) Some folks have expressed concern that they are getting close to the edge. This is entirely normal. The will begin spending a lot of time perching right at the edge of the ledge flapping their wings vigorously to build up their strength---remember that their newly developing muscles will have to carry them into the air in only a matter of weeks.
For folks interested in seeing and learning more about local birds, this Saturday is the Oaks Bottom Festival of the Birds. The event is sponsored by Audubon, US Fish and WIldlife Service, and Portland Parks and features bird walks, booths, kids activites and more. Go to: the Audubon Website for more information.
Finally, my postings may become a little less frequent between now and May 14th. Over the next several days I will be on Audubon's annual fundraiser "Birdathon" and then I will be in D.C. testifying on legislation to increase protections for birds of prey. For those who have never heard about "Birdathon" it is a multi-day event in which crazy birders take to the highways, byways, back roads and foot trails to count as many species as they can to raise funds for Audubon's conservation efforts. People pledge a certain amount based on the number of species seen. For anybody interested in pledging to support Audubon's efforts to protect birds and other wildlife and keep nature in our city (including raptorcam!) go to: Birdathon Page