chimney swift

Fall Migration and Birdcast

Fall Migration is underway and while your seed and suet feeders will typically slow down now through October birdwatching in the area will be significantly more interesting because migration is in full swing.  Keep those hummingbird feeders fresh and filled because we still have several weeks of busy hummingbird feeding remaining. 

When spending time outdoors have your binoculars with you and ready because Warblers, Tanagers, Orioles, Rose-breasted Grosbeaks, and Flycatchers are pouring through middle Tennessee stopping to feed in the mornings on insects and berries.  Pay special attention to birdbaths and fountains as many of these birds seek out good water sources to take advantage of.

Mornings are the best time to see lots of different species because most of the mentioned migrants are traveling at night. They settle down to rest and feed in the morning.

Look for large if not massive flocks of Chimney Swifts and Common Nighthawk in the evenings commonly seen in areas near downtown or where there is ample night lighting like high school football games.

Did you know that radar used to track weather systems is also used to track bird movements? I suggest you check out BirdCast. BirdCast is a project of the Cornell Lab of Ornithology, Colorado State University, and the University of Massachusetts Amherst. BirdCast applies weather surveillance radar to gather information on the numbers, flight directions, speeds and altitudes of birds aloft in order to expand the understanding of migratory bird movement. Just last night, Sept. 8, an estimated 995,300 birds flew over Davidson Co. And that number will increase as we approach the usual strongest time of migration in the month of October. BirdCast has live migration alerts in real time. Their findings have been eye-opening and very interesting to say the least. To summarize all the interesting information provided by BirdCast would be impossible. I urge you to check out this site. Wonderful! Visit Birdcast at www.birdcast.info

Make time to visit one of the many great local birdwatching areas this fall to see some birds you may not have seen before. The usual local hot spots include:

Radnor Lake   Warner Parks    Bells Bend    Harpeth River Greenway    Shelby Bottoms        

Hidden Lakes State Park     Gossett Tract State Park    

Bowie Nature Park and Montgomery Bell State Park

Fall Migration Notes

Fall Migration is underway and while your birdfeeders will slow down as we approach October birdwatching will only get more interesting.  Have your binoculars with you and ready because warblers are pouring through middle Tennessee stopping to feed in the early mornings on insects and berries.  Mornings are the best time to see lots of different species of warblers.  And mornings after a storm tend to be even better.  Make time to visit one of the many great local birdwatching areas this fall to see some of them.  For information about great places to birdwatch click on the links below…

  • Tennessee Birding Trails is a great website for locating trails for specific types of birding.

  • Tennessee Birding Facebook group has an active community of birders who post often.

  • Tennessee Ornithological Society (TOS) Nashville Chapter is having their Radnor Lake Wed morning bird walks September 19th and continue each Wednesday through October 10th. Please meet in the west Parking lot outside the Visitor’s Center at 7:30am. Come rain or shine. With the exception of ongoing downpours or thunderstorms.

  • TN-BIRD email list is a free list that allows you to get updates of bird sighting from other birders in the area. to receive emails simply click on “find and join” at the top right of the tn-bird page, search for list name tn-bird, and follow the instructions on signing up your email.


One of the more interesting, easy, and fun things to see in the fall is the migration of Chimney Swifts and Common Nighthawks. In the evenings, particularly in areas where there is outdoor lighting, like high school football games and shopping malls, Common Nighthawks gather and feed on insects. Downtown areas tend to be very productive areas to see both.

The Common Nighthawk, a member of the Goatsuckers family, measures around 9 1/2 “in length. They are gray-brown with slim, long wings that have a distinctive white bar near the tips. They are most active at night but can be seen midday as well. They fly with long easy strokes but can quickly change direction and appear erratic as they catch flying insects. Male Nighthawks have a white throat and white band across a notched tail. Listen for the unusual “peent” call of the Nighthawk.

The Chimney Swift is a short swallowlike bird with long, slightly curved wings. Peterson’s field guide to Eastern Birds describes it as a “cigar with wings”. Always in motion, Swifts appear to continually fly never landing to rest and constantly “twitter”. They measure about 5 ½” in length and are uniformly grayish to brown. During migration Swifts have been known to roost together by the thousands in a single chimney. On more than a few occasions I have witnessed a “funnel” of swifts descending into the chimney of a downtown building while on my way to a Predators game. It is a fascinating sight.


And About Hummingbirds

We may see Ruby-throated hummingbirds well into October so keep your feeders out with fresh nectar as there may be several waves of hummingbirds still coming through TN on their return to Central and South America. The belief that feeders should be taken down to cause the birds to migrate is incorrect.  They will leave when they are ready whether there is a feeder present or not.