The Lawrence Peregrines are well along in the month long incubation process. The normal clutch is four eggs, laid on alternate days. Incubation, usually initiated when the third egg is laid, is usually 29 to 33 days based on history at this location. Clutches of three or five eggs are known to happen but less so at this site over past number of years. Both sexes share incubation. The male takes a lesser role, often replacing the female after catching prey in the early morning.  here you are able to see a changing of the guard!