|A dark morph among some light morphs 3/23/12|
I keep hearing about morphs? What is a morph? A morph is a genetic variation, like blond, brunette, redhead. Most of the Swainson's Hawks we see are light morphs, some are very dark and some rufous or intermediate. Strangely the literature indicates that only 10-15% of California Swainson's are light in summer. See the variation between light and dark in the photo above. Swainson's Hawks do not have subspecies and only Red-tailed Hawks have more color variety.
Two hundred plus Swainson's Hawks and 50 Turkey Vultures dropped in this evening. The SW's are roosting across the road from the evening watch site on Borrego Valley Rd. The whereabouts of the TV's is unknown.
Prediction for Tomorrow:
The wind should be light so expect lift off between 8 and 9A. The best place to watch the kettles form are at the evening site on Borrego Valley Rd, or on Di Giorgio north of the Springs RV Park and at the day site on Di Giorgio Rd.