Banding protocol is to take each species down to its lowest denominator. Yellow-rumped Warbler is a lumping of the two races of Audubon’s Warbler which is found normally west of the Mississippi River and Myrtle Warbler which is the eastern race. To monitor if these races will merge west or east, it is important to keep detailed records of the races. Another example is the Blue and White morph of the Snow Goose. In keeping records of these different races we can document climate change in their northern breeding ranges. Blue Snow Goose is moving northward. Snow covered tundra is receding north favoring a darker bird to nest on the tundra. Much can be learned about species by keeping the details.
There have been several days of southerly winds but they have been dominated by two strong high pressure systems. A strong passerine migration for Ohio is when the low pressure system moves across the country hits the Oklahoma/ Arkansas region and moves up the Ohio River Valley. This front's movement will bring warm temps and warm winds from the Gulf of Mexico. We have had years where high pressure systems sit on top of Ohio and make a good sunny day but make a very poor day for bird migration through northern Ohio. Migration is weather dependent. Where the fronts are located determines a good or bad migration.
Today’s top six species:
(43 new banded birds with 12 recaptures)
White-throated Sparrow - 12
Ruby-crowned Kinglet - 9
Hermit Thrush - 9
Slate-colored Junco (Dark-eyed Junco) - 2
Swamp Sparrow - 2
Northern Cardinal - 2
This bird is an After-second year Blue Jay which means it is at least in its third year of life. Birds get a new birthday every January 1st. The primary coverts on the wing are bright blue with black barring. A second year bird would have duller blue primary coverts and no barring. Second year birds were hatched last summer. They are in their second year of life.
Here is the After-second year (ASY) wing
Enjoy the Day!