Aging has been described as the predominant cause of vertical ridges on the fingernails. Onychorrhexis is the medical term used to describe longitudinal ridges on the nails that often accompany brittle nails. In contrast to longitudinal ridges, Beau's lines are horizontal or transverse depressions in the nail that may be confused with nail ridging.
Ruby-throated Hummingbird Migration. Ruby-throated Hummingbirds normally spend the winter in Central America. From March through May they migrate north, some through the eastern two thirds of Texas, some apparently through Cuba and Florida, and some apparently directly across the Gulf of Mexico. Birds reach the southern Gulf coast in late February and early March.
Rufous Hummingbirds Selasphorus rufus -- Native / Common ... Like the Ruby-throated Hummingbird , they usually arrive in the first week of May (with some arriving as early as mid April). Males are usually the first to show up to stake out their feeding territories. Most leave toward the end of September.