House finch

Wood Thrush Notes

Recent Bird News

The recent nearly 8” of snow we had certainly increased bird feeding activity to levels we are more familiar with. Many of you saw Purple Finch and Pine siskin, Red-winged Blackbirds, and lots of Juncos. Thanks to all of you who were patient with our freight difficulties and low level of seed inventory. It may interest you to know we sell in the neighborhood of 6,000 lbs of seed per week. So, when winter weather disrupts freight and the need for seed increases we can get into a bind. I’m happy to report we are well stocked and back to normal.

We have a customer in West Meade who has a “special visitor” coming to a suet feeder. This bird is not considered rare but more along the lines of uncommon. The bird is a female Baltimore Oriole and it is coming to suet. We always point out to people that suet is a great food source for wild birds and is the most likely food to appeal to a more unusual species, like this Oriole. It’s been visiting semi-regularly even before the winter storm. The Baltimore Oriole primarily passes through TN during its migration in the spring to areas more north of TN where they breed. March and April are the best months to see Orioles, the male with its bright orange plumage and black and white wings.

Every book I’ve picked up over the years about bird feeding strongly recommends putting out orange halves to attract Orioles but upon further research Orioles prefer ripe dark colored fruit. The darkest Mulberries, the reddest cherries, and the deepest purple grapes are on their preferred fruits list, and will ignore green grapes and yellow cherries. So, this spring I will be presenting some cherries and grapes rather than the oranges that have not worked for me. Orioles will visit hummingbird feeders, too, as they have a similar specialized tongue for extracting nectar and juices from fruit.

Another very interesting visitor to a feeding station in the Brentwood area, and more unusual than the Oriole, is a Black headed Grosbeak.

The BHG resides primarily west of the Mississippi River from Central America to as far north as southern Alberta and British Columbia during the breeding season. The lone bird was coming to a platform feeder for seed, sunflower and millet, I believe. Reported sightings of this species are few making it a rare bird.

The most unusual news to share, though, is a confirmed active House Finch nest with babies. The customer reported a nest and eggs in early January in a typical House Finch nest location, their front door on a wreath. I reached out to them to find out if the babies had developed and grown enough to fledge but have not heard yet. I will share that news in the coming weeks. I cannot remember ever hearing of an active songbird nest in January.

Wood Thrush Notes

A couple of cold fronts have moved through mid-TN since our last blog a couple of weeks ago pushing most of the Rose-breasted Grosbeaks out of the area. A few are still being seen at feeders locally, as are Ruby-throated hummingbirds. Sightings of Red-breasted nuthatches have slowed a bit while sightings of Purple Finch and Pine Siskin are on the rise. Remember, we do not have Purple Finch here year round like we do the House Finch. They are a fall through winter visitor and numbers can be sparse to significant from year to year.

Purple finch on left. House finch on right.

Pine Siskins are often missed by the casual observer as they tend to mix in with Goldfinches at feeders. Noteworthy field marks on the Pine Siskin include yellow wing bars, and yellow at the base of the rump and considerable streaking on the breast and belly.

Other winter visitors like White-throated sparrow, Junco, and Yellow-bellied sapsucker are present around feeding stations. This week in my yard I’ve had several sightings of Golden-crowned Kinglet, and Eastern Bluebirds have re-discovered my suet feeder, as they seem to every fall and winter.

Remember to keep an eye on suet feeders for chance sightings of some of the atypical feeder birds. Ruby-crowned and Golden-crowned Kinglets, Brown Creeper, Yellow-rumped, and Orange-crowned warbler, and of course Bluebirds are some of the birds to potentially see at a suet feeder.

On the subject of Bluebirds it is a good time to clean out nest boxes. The old nest debris can be wet and moldy making it a breeding ground for troublesome insects. Sometimes Bluebirds will use nest boxes to roost during wintery conditions. Several birds may squeeze in together to escape frigid temps or a wintery mix of precipitation. Bluebirds don’t require any kind of bedding for roosting but if you want to put some wood shavings or pine straw in the box that’s fine. And if you have a nest box that hasn’t had any action for a couple of seasons go ahead and change the location of the box now. During the winter months Bluebirds will actively check out potential nest sites. Give them time to locate the new site.

That’s all the news for this week. Keep your binoculars close and be ready to use them. If you don’t have binoculars come to the shop and let us help you choose some.


Wood Thrush Notes

Purple Martins “Staging” in Nashville

There’s an extremely interesting bird occurrence happening in downtown Nashville that is worth making the effort to go see. For many years Purple Martins have utilized some downtown areas to roost in the evenings. This year there is a truly impressive roost. What is a Martin Roost? In late summer, after Purple Martins leave their nesting colonies, they gather in large flocks to feed, socialize and rest before migrating back to South America. It is referred to as “staging”. This pre-migratory roosting can attract thousands of birds to one small area. Martins also form winter roosts on their South American wintering grounds where they will often flock together with other martin species.

By 8 pm Purple Martins by the 10’s of thousands begin settling into trees surrounding the Schermerhorn Symphony center and areas nearby. Numbers have been conservatively estimated at 150,000 by local birdwatchers. With the Cumberland River very close by there is ample flying and feeding space for lots of insect eating birds. This roost may not last much longer so do make an effort to see more Purple Martins in one place than you’ve ever seen before.

Other birds to see in large migratory flocks around downtown include Chimney Swifts and Common Night Hawks.

House Finches with Eye Disease

This has been a very productive breeding season for many songbirds. By now we would typically see a marked slowdown at bird feeding stations; however, seed sales remain strong and feeding stations busy.

One species in particular seems to have been especially productive and now in great abundance at feeding stations, and not everyone is very happy about it. Many of you have been experiencing lots of House finches (not Purple finch) at your feeding stations and, too, their annoying habit of tossing seeds out of the feeder. I’m not sure why they possess this annoying and wasteful habit and have seen them do it even with the very best quality and desired seed like sunflower hearts.

Male House Finch with eye disease.

In addition to this annoying habit House finches are prone to an avian form of conjunctivitis. Just yesterday I had a sick House finch on a platform feeder. With an abundance of House finches, we may see significant numbers of House Finches with an eye disease known as Mycoplasmal conjunctivitis, or House Finch eye disease. You might observe an infected bird sitting quietly in your yard, clumsily scratching an eye against its foot or a perch. While some infected birds recover, many die from starvation, exposure, or predation. If you’re a songbird it’s impossible to survive if you can’t see. We hear reports and see evidence of this every year that range from sparse to wide-spread.

Birds infected with House Finch eye disease have red, swollen, runny, or crusty eyes. In extreme cases the eyes become swollen shut and the bird becomes blind. House Finch eye disease is caused by the bacterium Mycoplasma gallisepticum. This bacterium has long been known as a pathogen of domestic turkeys and chickens, but it has been observed in House Finches since 1994. The disease has affected several other species, including American Goldfinch, Evening Grosbeak, and Purple Finch

If you detect a sick finch at your feeder the standard procedure is to take down your feeders for a few days to a week and give them a very thorough cleaning. Cleaning your feeders is always a good idea and is recommended it be done on a regular basis. Soap and hot water and a good brush are recommended for cleaning and Clorox wipes are very handy to give feeding ports a thorough cleaning.

Hummingbird Activity Slowly Building

Many of you are seeing much better activity at the hummingbird feeders in recent days. At my feeders I’ve seen a 50% increase compared to last week. I believe the peak for hummer activity is still coming in the weeks ahead so even if activity has been somewhat disappointing thus far there is still time to see a major surge well in to September during migration.