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determining “stealth migrants” (Mount Soledad)

determining “stealth migrants” (Mount Soledad)

By – 5:06 pm
As mentioned in some previous posts, it is not easy to document true through-migrants of a number of species in most parts of the county due to their being “drowned out” by more resident birds present as well. Often determining migration status is easier for many species at desert sites where they occur (in numbers) only as migrants. Along the coastal slope it is even more difficult. But coastal sites with distinct morning-flights, or a few small areas where many such species do not breed or winter such as outer Point Loma, may do the trick. This morning at Mount Soledad, an American Kestrel flew at moderate height from well to the south in direct flight to well to the north, over the mountain, as did the second Osprey in as many days. And as did 2 American Robins. More typical migrants today included a somewhat early Ash-throated Flycatcher and direct-flying 12 Western Kingbirds, 49 Yellow-rumped Warblers, 1 Bullock’s Oriole, and 8 Lawrence’s Goldfinches. The weather now should NOT be as good for morning-flight until at least sometime mid- next week or later.–Paul Lehman & Jay Desgrosellier, San Diego