The Fall migration has started along the Foothills, at about the 1,500′ elevation, where they can ride any thermals,
or, today, they are riding the 30 kt south wind, so their ground speed is about 60 kts.
Note that they will be flying at 4,000 ft and above, and fly in wide ‘V’ formations of 50+ birds.
If they find a strong thermal they will spiral up, single file, to over 10,000′ before reforming their ‘V’ formation again.
So, be careful flying along the Foothills, or crossing them…. they are nordo and no ADSB.
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