Categories
Backyard Wildlife Gardening

Why Grow Oats?

It will most likely be gone by the time anyone reads this article, but right now my garden is covered with a couple of inches of fresh snow. I haven’t put out any purchased bird seed yet this morning, but in the meantime there are plenty of birds in my yard nibbling on the seed heads of many plants that I have left standing as sources of winter food. Some of the seeds being consumed are from native wildflowers which I grow in order to enhance the utility of our garden as a habitat for beneficial insects and birds. Other seeds are from useful plants that I grow for different purposes, one of which is Oats, Avena sativa.

Cat Grass, aka Common Oat, Wild Oat

At Schnarr’s we sell Botanical Interests brand seeds which packages Oats as “Cat Grass”. In the past I have made extensive use of Oats as a cover crop. I was able to order from Schnarr’s a large sack packaged as “Race Horse Oats”. The Oats contained within were viable seeds and grew very well for me as a cool-season cover crop. As the Oat plants matured and produced seed, I noticed their popularity with wild birds and enjoyed the extra benefit of attracting more winged visitors in my garden.

Oats are often green at times of the year when you need something besides brown in the garden (“Cat Grass…”), so they are useful to keep in mind as an option when planning the seasonal succession of plants in your garden. However, they might not be suited to every garden. In some regions they have been reported as invasive (“Cat Grass…”) and although the dried stalks are very pretty as they arch over the garden with a full head of golden seeds, animals quickly rough up the patch trying to get at them so unfortunately the plants don’t stay pretty for very long once they are ripe.

When Oat plants finish their life cycles, they dry out and produce straw. Straw potentially has many uses in the garden such as mulch, a soil amendment, or if it’s made into bales, a growing medium. The hollow straw Oats produce is also a great material for filling houses designed as nesting sites for pollinating peaceful native bees.

Pollinator houses with straw
Pollinator houses with oat straw. The lower house is being filled with alternating straw and bamboo lengths to provide a variety of nest hole sizes.

Last summer my husband and I installed a small pond. We’re still working on parts of the system, especially the aesthetics, but the filters and waterfall have been functional for many months now. We’ve had a pretty mild winter overall, so on many days when it’s not freezing I’m able to run one of the filters that directs its outflow water to our small waterfall where it is further filtered with lava rock and, in season, plants as the flow trickles back down to the main section of the pond system.

In that short video above, you can see that I have bundles of floating straw in the filter. Many people are familiar with the use of Barley straw in ponds to prevent excess algae growth. I did a little research to find out if I could use Oat straw as a substitute, and although it may not be quite as effective as Barley, Oats can indeed be used as an algae treatment (Poole).

Forming straw bundles for pond filter.
Forming oat straw bundles for pond filter, sized to fit.

The straw algae treatment is more effective as a prevention than as a cure, so adding it before there is a visible algae problem is an advantage. If you have Oat straw or other straw available, try tying it in bundles to add to your pond – right now is a great time, if you’re looking for a winter task you can do for your garden. The straw looses effectiveness after a few months, so you can also use some of your winter gardening “down time” to make extra bundles for use later in the season.

Works Cited and Further Reading

Avena sativa L.” United States Department of Agriculture, 2021, plants.usda.gov/core/profile?symbol=AVSA. Accessed 28 January 2021.

“Cat Grass, Common Oat, Wild Oat.” Dave’s Garden, 2021, davesgarden.com/guides/pf/go/62227/. Accessed 28 January 2021.

Poole, Terri. “Controlling Pond Algae With Straw.” Turfgrass Matters, May 5, 1996 p. 5. archive.lib.msu.edu/tic/matnl/article/1996may5.pdf. Accessed 28 January 2021.

Rust, Kenneth. “Spring Pond Algae Invasion.” Ogden Publications, Inc., 2014, www.motherearthnews.com/homesteading-and-livestock/pond-spring-algae-invasion-zbcz1404. Accessed 28 January 2021.

Winkelmann, Carolyn Hasenfratz. “Help – My Pond is Full of Algae!” Schnarr’s Hardware Company, 2017, schnarrsblog.com/help-my-pond-is-full-of-algae/. Accessed 28 January 2021.

Categories
Backyard Wildlife Gardening

How to Raise Mealworms For Your Backyard Birds

How to Raise Mealworms For Your Backyard Birds

by Carolyn Hasenfratz

Late winter and early spring are good seasons to attract desirable bird species to your yard. Birds are not brooding eggs yet because they need to wait until later in spring when there is enough insect food to feed their young. However, they are now engaged in, well, getting engaged! In other words many birds are scouting out nest sites and selecting mates if they haven’t done that already.

You can entice birds to think your property is a good place to raise families by managing it with good bird habitat in mind – some ideas are in my previous article “Gardening for the Birds”. Some of the most sought-after backyard bird species are heavy insect eaters. Many dried and live mealworms are purchased to attract Eastern Bluebirds. Although they tend to be rare in urban and suburban areas, I saw one at the Litzinger Road Ecology Center a couple of weeks ago, so I know they are present in Ladue in places where the habitat is suitable.

Dried mealworms, which can be purchased at Schnarr’s, are more convenient than live mealworms and possibly more acceptable to those who are squeamish. If you would like to try raising your own however, I’ll tell you how. It’s so easy, I started raising mealworms by accident! For years I’ve raised plenty for my pet birds, newt and fish and there are enough left over to share with the outdoor birds also.



Mealworm larva, pupae and adult

Life stages of the mealworm beetle in my hand – one larva, two pupae and one adult

Mealworms are not actually worms. They are larvae of a species of beetle, usually Tenebrio molitor L. My indoor and outdoor birds will happily consume all three forms of the beetle – adult, pupae, and larvae. When you purchase live mealworms in a store, they are usually larvae only and they are refrigerated to slow down their development into pupae and adults. To get adults who will lay eggs and make more mealworms, you need only to store the larvae at room temperature and give them food and a little moisture!

To begin, acquire a container that is steep sided so the adult beetles can’t escape. An unused 10-gallon aquarium is ideal. Place an inch or so of some kind of “meal” product on the floor of the aquarium. I use a combination of oatmeal, chicken food, and flaxseed meal. These creatures are not that picky so you can use what is cheap and available – I’ve seen an exhibit at the zoo of mealworm beetles consuming styrofoam!

Place a couple of pieces of bark or wood on top of the meal for hiding places. You don’t need a light, they don’t like it. I only use a light to see when it’s time to harvest some larvae. Nor do you need a lid because the adult beetles don’t fly. Buy a container of live mealworms and dump the contents into your mealworm container. Every couple of days, add a little more food and something with moisture that the larvae can “drink” from. Good choices are a piece of carrot or potato, or leftover pieces and rinds from fruits and vegetables that aren’t too odoriferous. You can also buy a special gelatin-like product that is designed for “watering” crickets. Avoid a dish of water because the insects might fall in and drown. If the substrate gets wet and moldy, replace with dry substrate.

When nutritious foods are fed to a prey animal like mealworms and crickets, that is called “gut loading”. In theory, the better you feed your mealworms the more nutrition you’ll be passing along to the eventual bird consumers. Cat food contains protein and amino acids that are very good for insectivorous and omnivorous birds. My two pet European Starlings’ staple food is made from 1/3 chicken food and 2/3 cat food. They are picky about what size food particles they will eat so there are always lots of leftovers that are given to my mealworms and quickly devoured.

Eventually the larvae will develop into adult beetles that will lay eggs. Lift up the wood pieces periodically to see how many insects are hiding under there. When you think you have a high enough population to start harvesting, go ahead and take some. You will get a feel for how many you can take and how often over time.

If you get a fruit fly infestation, try moving the mealworm container to place where a few tiny flies are not that bothersome, like a garage. You can also set up a fruit fly trap (available at Schnarr’s) near the mealworms to catch the flies.

Raising mealworms may seem “gross” at first but it’s a great way to see and teach the life cycle of insects. If you have young family members they might be intrigued by this activity and develop an interest in animals and science. I started aquarium keeping when I was eight years old and I already liked bugs at that age. Besides fish I loved to keep lizards, toads and praying mantises. Seeing the mealworms I bought for my pets turn into pupae was really interesting! If you give a little squeeze to a pupa that is alive it will wiggle, which is an amazing thing for a kid to see!

Categories
Backyard Wildlife Gardening Lawns

Are Starlings Taking Over Your Bird Feeders?

Are Starlings Taking Over Your Bird Feeders?

European starlings. Image by Richard Crossley.
European starlings. Image by Richard Crossley.

I was eating dinner outside in downtown St. Louis recently and observed a large flock of European Starlings (Sturnus vulgaris), known as a murmuration, select a group of trees in a nearby park for their nightly roosting spot. This is the time of year that Starlings finish raising their families and start living a more communal lifestyle, which will persist until the next spring breeding season.

A popular topic with customers at the store last winter was how to keep flocks of Starlings from eating all the food put out for the other backyard birds. This is a problem I WISH I had – I know that sounds strange. Starlings are my favorite bird, because I rescued a nestling nearly six years ago and raised her and adopted another one two years later. My Starlings Attila and Pooky are my beloved pets (as I’m writing this I have one my arm and one on my shoulder) and because of them I’ve done lot of reading about Starlings. I like to observe wild ones whenever I get the chance to see how their behavior and vocalizations are like or unlike my tame pair.

Unfortunately if a flock of Starlings descends in my yard, if I go to the window to watch them they immediately take off. So that is my first idea about how to keep Starlings away from your feeders – try putting the feeders within view of a window where there is human activity. Some birds are more tolerant of people, for example on my deck Carolina Wrens, Robins and Song Sparrows will not only tolerate me looking at them through the window but will sometimes accept my presence with them on the deck as well.

Another idea is to serve food that Starlings don’t like – that is difficult to do, since they eat almost anything. They cannot open the shells of sunflower seeds, so you might try feeding sunflower seeds with the shells on.

Another tactic I’ve seen recommended on other web sites is to remove perches on your feeders so that other birds can access the seeds but Starlings cannot because they say Starlings need a perch. Based on my own observations, I’m skeptical about this, but who knows, it might work on small feeders. I’ve seen Starlings cling to surfaces with no perch just fine, they even spread their short tails out like a woodpecker does to use as a prop, but the absence of a perch on a small tube feeder where there is not enough room to prop the tail might deter them. Another idea is to smear suet on a pine cone and hang it, allowing small clinging birds to access the suet but making it difficult for the Starlings. Others recommend putting wire mesh around the feeder that allows small birds in but excludes Starlings. That should work but of course will exclude all larger birds.

A squirrel baffle over a feeder is said to deter Starlings because they don’t like going under a cover. This I can believe – my two Starlings hate it when I pass a hand or arm over them, so I try not to do that. I also don’t cover their cage at night because it frightens them. They are also said not to like feeding while hanging upside down, so any feeder that makes the bird feed this way will probably not be attractive to them.

If you like Starlings but just wish they would give the other birds a chance too, you might also try providing a separate feeding area that appeals to Starlings more than other birds. A platform feeder stocked with cat food is perfect for Starlings. You could augment the cat food with vegetable and culinary herb scraps left over from your cooking if you have any, my two Starlings love vegetables, greens and herbs, both cooked and raw. Just leave out the avocados, onions and garlic – they are toxic to birds. There is a risk in this strategy, Starling flocks can be big enough to take over ALL the feeders if they are in the area – also you’ll get other animals – but it might be worth trying as a temporary measure to give your other backyard birds a break. If this type of feeder accidentally attracts crows and ravens, that can be a good thing, they will help drive off predatory hawks and falcons with their mobbing behavior.

You don’t have to rely only on feeders to attract birds. I’m not allowed to put out bird food where I live, so I provide a water feature that gives the birds filtered, and in the winter heated water for drinking and bathing. This attracts quite a few birds. I also have a lot of bird-attracting plants in my garden and when I’m able I leave the seed-heads standing all winter to provide food. Rose of Sharon, Purple Coneflower and Korean Hyssop seem to be particularly attractive to small birds such as finches. Woody plants like the Rose of Sharon will support the Starlings’ weight while feeding but many of the herbaceous plants won’t so the smaller birds can get a good chance at the seed. Starlings are imported to our continent – a greater proportion of native plants in your yard may bring an increase in native birds to give the starlings some competition. Areas of leaf litter also attract birds for invertebrate foraging – this is worth trying if you have an area of your yard that you don’t mind leaving in a more natural state. You can even include a dust bath area if you want to, since Starlings adore water baths and some other birds would rather have a dust bath.

Starlings have been doing what they do for 20 million years, and stopping them will not be easy. If it makes you feel any better, the fact that there are Starlings in the vicinity means that you will have fewer lawn grubs, tent caterpillars, Japanese beetles, stink bugs and other insect pests. Starlings are perfect eating machines for lawn grubs – their beaks have more force in the opening than the closing, and are suited for prying in the dirt and grass and exposing invertebrate prey – watch this great video to see this action from an insect’s point of view!

Help! I’m Being Predated by a Starling!

It might prove more productive to enjoy Starlings rather than try to fight them. Whichever way you want to go, it’s helpful to understand more about them. I recommend the following resources for learning more about Starlings.

Starlingtalk.com

An Unwelcome Success – The European Starling in America

Documentary Film

Do Starlings Talk?

Baby Bird Rescue 2014 – My attempt to save starling nestlings, and an account of how I developed an interest in starlings.