An addendum: while I was watching for fly out from the main night roost for summer resident Turkey Vultures (and expecting some migrants to be using the same vast night roost area), other CPW Raptor monitors were watching from a more southeasterly location — and counted more than 300 TUVUs in thermals over Castlewood Canyon SP. An occasional Swainson’s Hawk and Northern Harrier were also in the thermals, but more than 99% were vultures. Sunday into Monday was a most significant migration day for vultures and it was the highest number of any autumn day in several years when we have monitored. These included the 172 I counted leaving the roost.
Karen MetzCPW Raptor MonitorFranktown Karen tried to send this yesterday but it bounced. Hugh -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/1633301721.704965.1601591655166%40mail.yahoo.com.
