Cornell eBird is just releasing species maps showing trends in abundance from 2007 to 2021. Wonderful consolidation of zillions of observations.
I pulled up the map for Blue-gray Gnatcatcher. https://science.ebird.org/en/status-and-trends/species/buggna/trends-map?utm_source=Cornell%20Lab%20eNews&utm_campaign=612a9e57e2-Cornell-Lab-eNews-November-2022&utm_medium=email&utm_term=0_47588b5758-612a9e57e2-306045397 This map tracks my experience of a significant decline in abundance along the Front Range. It would appear that we are on the western edge of a broad decline in abundance in the eastern US, whereas almost the entire West is showing increases. If nothing else, these maps will fuel a lot of discussion and arm-chair theorizing. -- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ --- 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/6498338e-bc36-4ebe-b9a5-9b2df292ac29n%40googlegroups.com.
