Hello swifters
Here is the latest eBird update on the migration route of Chimney Swifts. In just a week swifts have spread west into Texas and north as far as Tennessee. Given we are still in mid-March, it is not surprising that Chimney Swifts have been documented laying two broods in a season in Texas.

Again, if you would like to see these maps for yourself, go to http://www.ebird.ca, select ‘Explore Data’ and then ‘Species Maps’.
Cheers
Tim Poole