Huge Purple Martin Roost in Nashville

The huge Purple Martin roost that created quite a stir at the Nashville Symphony Center last year is back. Last September an estimated 150,000 Purple Martins turned the Symphony Center into a staging area roost in their fall migration and they have returned.

Purple Martins leave their colony nesting sites by mid-July and begin gathering in flocks before moving again to the next destination on their route. Eventually they will form huge roosts numbering in the hundreds of thousands along the Gulf Coast from Texas to Florida as they continue migration to their winter homes in Bolivia, Brazil and Argentina.

The roost will likely be present for another few weeks so make it a point to go see this amazing spectacle.

Warner Park may still be looking for volunteers to assist on a nightly basis to monitor and report observations. For more information visit

https://www.signupgenius.com/go/10c0f4da5ac2da3f8c34-purple1

Hummingbirds, The Fun is About to Start!

Here we are at the beginning of August and the time has come for Ruby-throated hummingbirds to ramp up their interest in feeders and the action will be fast and furious now through the end of September until as late as mid-October. Hummingbird nesting is likely near conclusion. If you have been discouraged by the lack of hummingbird activity thus far this summer now is the time to make fresh nectar, clean up the feeder and try again.

For many of you the spring and early summer months produce little if any activity at your feeders. Why? Let’s not forget Ruby-throated hummingbirds DO NOT make the long journey here from Central and South America for the sugar water in feeders. They DO NOT NEED the feeders but will take full advantage of them when they are through nesting and fattening up for migration becomes their primary goal. Hummingbirds have been migrating here for thousands of years to breed and to take advantage of the abundance of insects, which is their primary food source. They would be here even if hummingbird feeders did not exist.

It is thought by many the reason for this sudden surge is they have just "come back" from where they've been. Actually, it is because summer resident hummingbirds have concluded raising one, two, or even three broods of offspring and are ready to begin taking advantage of nectar in feeders.

Ruby-throated hummers usually raise two chicks at a time so when the nesting phase concludes you may be seeing at least 6 young hummers coming to feeders. The youngsters, male and female, look very much like adult females. Then as hummingbirds from more northern locations begin funneling through TN in late August and into September the fun really begins. Wave after wave of hummingbirds begin passing through TN on their way to the Gulf of Mexico where they will eventually find their path across. Hummingbird migration is triggered by the days now getting shorter, not necessarily temperature or weather.

The best nectar you can offer hummingbirds is a simple 1 part sugar to 4 parts water solution. It is not necessary for the water to be brought to a boil before adding sugar. The nectar is ready after the sugar has been stirred in and fully dissolved. Do not add color. Color is absolutely unnecessary and potentially harmful. Also it is bad to use natural raw sugar, the kind that is slightly brown in color. Regular white table sugar is best. When making larger batches for refrigeration boiling the water is recommended.

As October approaches and numbers of hummingbirds have decreased significantly it is good to keep at least one feeder out to provide late migraters a “fueling” station. It is not true that leaving a feeder out will cause hummingbirds to stay and ultimately not migrate.

Wood Thrush Notes

Update on Mysterious Bird Deaths

Last week we reported on the mysterious bird deaths taking place north of us and in Mid-Atlantic states. We have had no reported sightings of sick or dying birds from customers here in Nashville but we do recommend being vigilant. The TWRA has collected some specimens for testing and will make a statement next week regarding their findings. At this time the TWRA is recommending that feeders be taken down if you witness a dead or obviously sick bird. As reported last week the species most affected thus far have been Robins, Blue Jays, Common Grackle, and Starlings. I wish we could offer more detailed and definitive information; however, there is still much to be learned. As information from credible sources is gathered we will promptly share it with our customers.

View fullsize

View fullsize

Bald Cardinals

I have seen a number of Northern Cardinals recently that are partially to totally bald. They do look odd but it is normal and temporary. After the breeding season and usually beginning in mid-summer birds begin molting. Northern Cardinals and Blue jays often lose all of their head feathers at once rather than a little at a time like most other songbirds making their molt mostly unnoticeable. Sometimes the feather loss can be the result of a feather mite but this particular molt pattern for Cardinals and Jays is considered normal. If you see what appears to be a Cardinal with a black head grab some binoculars and look a little closer. It’s slightly disturbing at first but it does offer an interesting glimpse at the position of the ear which is below and back of the eye.

Wood Thrush Notes

Update on Mysterious Bird Deaths

By now I’m sure many of you have heard the reports of birds inexplicably dying over the last several weeks in areas north of us including, Indiana, Kentucky, Ohio, Maryland, and Pennsylvania. Specimens of Blue Jays, Grackles, Starlings, and Robins (the most prevalently affected species) tested have turned up no clues as to what is killing them. Several illnesses have been ruled out including, Salmonella, several varieties of viruses, and Trichomonas parasites. Scientists are still scratching their heads trying to figure out the cause or causes. It has been recommended that people in the mentioned states take down feeders and birdbaths, or eliminate anything that contributes to birds congregating. There has been no known connection, however, to bird feeders and baths.

Because this issue has been widely reported on, sometimes irresponsibly, we wanted to offer some information to help make you aware and to be vigilant. If you encounter a sick or dead bird please contact us, or Ellington Agricultural Center. In the past week reports of dying birds have slowed and whatever has been affecting birds may be concluding. There have been no reports of dead birds with the specific symptoms of eyes crusted over and possible neurological issues in Tennessee. As always we recommend cleaning your feeders regularly. Make sure your backyard birds are being offered the best environment possible.

Here is a link to an article from Science Magazine that we found to be helpful on the subject.

---

Rare Bird Sighting

In Trousdale Co. this week a Roseate Spoonbill was reported and confirmed. The bird was seen in the company of Egrets. The Roseate Spoonbill is a pink bodied bird with red highlights, a long spatulate bill, and a grayish to green colored featherless head. Spoonbills feed in shallow water sweeping their bills from side to side. This bird is fairly common along the Gulf coast.

Wood Thrush Notes

Tree Swallows and Bluebirds

Over the past ten years more and more people are reporting Tree Swallows using a nest box intended for Bluebirds. Tree Swallows are considered “competition” for the Bluebirds but typically that would be because there is only one box available. Such is the case when only one box present. In mid-TN there may be as many as 7 different songbirds interested in a Bluebird box; Chickadee, White-breasted Nuthatch, Tufted Titmouse, Carolina, and House Wren, Prothonotary Warbler, and the Tree Swallow. This is why we recommend offering a number of nest-box choices. To not only alleviate competition, but to give several species of birds an opportunity that these days are getting harder to come by because of loss, or disruption, to habitat.

The Tree Swallow is smaller than a Bluebird measuring about 5-6 inches in length. Male and female are a steely blue-green to nearly black above and pure white below. Females tend to be a little duller in color overall. In the sunlight the blue-green plumage is very perceptible. Their forked tail is not as pronounced as a Barn Swallow’s.

Male Tree Swallow

Female Tree Swallow

Like other swallows they are expert flyers acrobatically catching insects on the wing. They appear to enjoy flying.

Their habitat preferences are pretty diverse ranging from wetlands and marshy areas to meadows and woodlands near water. This bird is only here between late February and approximately mid-March as it migrates back to its winter grounds in Honduras, Nicaragua, and Costa Rica.

I recall reading accounts of Tree Swallows and Bluebirds using nest-boxes placed back to back on the same pole. I’ve never had a chance to test this but recently heard from a naturalist friend of mine experiencing this very thing. So, these two species are compatible enough to tolerate nesting in close proximity. If you have experienced Tree Swallows seemingly taking over one of your Bluebird boxes perhaps this is a chance for you to test this theory.

---

Saturday Seed Availability Update

It’s been another trying week coordinating deliveries through freight. As a result of some errors we are out of stock of all sizes of Woodland Blend and Premium Blend until Monday the 28th. We are sorry for the inconvenience and are continually trying to keep your preferred products arriving in a timely way. Thanks for your business and your patience.