Category: fauna

Virginica O

Virginica O dusk, Bertrand
SEXUAL PHASES IN THE AMERICAN OYSTER (OSTREA VIRGINICA) During the past three years there has been an accumulation of evidence which indicates that in at least three of the so-called dioecious species of the genus Ostrea a change or sex frequently occurs from season to season or between early life and full maturity. It may be recalled that at least ten of the more than sixty described species of the genus are regularly hermaphroditic and larviparous. Some of these exhibit a rhythmical sequence of alternating male and female phases…W.R.Coe Biological Bulletin
Vol. 63, No. 3 (Dec., 1932), pp. 419-441

bird walk

Corvus brachyrhynchos
Went for a short morning walk along the Rivanna with people that know birds. They heard or saw white throated sparrows, carolina wrens, tufted titmouse, a fish crow, american crows, a bald eagle, mallards, canada geese, a red shouldered hawk, cardinals, mockingbirds, a ruby crowned kinglet, downy woodpecker, a pileated woodpecker, a red fox, hermit thrush, bluebird, yellow-rumped warbler, raven, sparrow, white-breasted nuthatch, goldfinch, song sparrow, Carolina chickadee, flicker, red-bellied woodpecker, catbird, robin, towhee, starlings.
I saw runners and unidentified flying objects.
The dog walkers are still leaving bags of dog dung on the side of the trail. People too precious to carry the load while they walk.