Google told me I was not the only one with this problem and was due to mating season. 'horticultural how-to and woo-woo' | margaret roach, head gardener. Hate to remove their sharpening instruments. I’m Margaret Roach, a leading garden writer for 30 years—at ‘Martha Stewart Living,’ ‘Newsday,’ and in three books. I host a public-radio podcast; I also lecture, plus hold tours at my 2.3-acre Hudson Valley (NY) Zone 5B garden, and always say no to chemicals and yes to great plants. Woodpeckers peck at homes for three reasons. No birds like that it seems. The USDA is willing to give us a depredation permit to allow us to shoot them but I’d really rather not. Â It is important that birds keep their beak well shaped so that they can eat their preferred food choice. I see bluejays constantly taking egg shells out of my compost pile. There are a fair number of them here–rural area, crunchy cat food for the outside cats, a compost pile with those egg shells in it–but I’ve never observed this behavior before. I also heard the rat-a-tat-tat and was looking around trying to figure out WHAT that was. Nothing stops them at all Hilarious. With smaller pieces of shell, or the paint chips, or for that matter bird seed, they load up awhile before flying off to hide the stash, putting the bits in their pouch-like “crop” temporarily. I tend to think they are going for calcium, or other minerals in the bone, especially since there is lots of wood around to chew on if they felt like it–but who knows. Hoping so. They have essentially destroyed a $3000 paint job. Â These help me out by allowing me to make a living and write this blog. The Blue Jay (Cyanocitta cristata) is actually a member of the Crow (Corvidae) family. How the blue jays figured out the paint-chemistry connection seems to be unknown, as is how they knew those eggshells were on their grocery list. I would sure like to know what the blue jays are saying to each other. Then I will ask my butcher for some suet. The answer was a bit of a surprise: It was a blue jay. But we don’t bake the eggshells, we microwave them. Not only have these birds loved the suet, but the juncos (known as bottom feeders) have It’s far too early for the annual woodpecker ritual of drumming to assert territory; it’s winter, not breeding season. They store food in caches to eat later. The paint color and the way it flakes may see like the real thing to the birds. here is a video of what they have done https://www.facebook.com/frontierrots/videos/vb.1015967318/10205490968006360/?type=3&theater. : ). Â They do this in order to keep their beak clean. Same thing happened to my house. Has anyone thought of hanging one of those calcium things that are used in bird cages – I think they’re called cuttlebone? What's up nature addict! It was the vermiculite they were after. Then again about the woodpecker, one was pecking on my wooden siding several weeks ago-seems rather early in the season. One year we had a squirrel who repeatedly visited our deck to nosh the white paint off a bench. Birds are certainly not bird-brained! I asked for help from the Audubon society and they suggested oyster shell. I’ve never seen them do it (my heap is far from the house) but that’s interesting, Mimimary. So sorry. I think the main problem would arise if an egg accidentally broke in the nest box, and they discovered the tasty insides! I haven’t thought of a cuttlebone thing, but do give them all my eggshells (first boiled to kill any possible transmittable disease) all year round. I should be more generous and offer them a plateful of vermiculite. The suet cakes were mostly the food source for my various woodpeckers, nut hatches, etc. So interesting! (A related topic: In areas of high acid rain, those natural calcium sources have dwindled even when it’s not winter, posing a risk to nesting forest birds, such as ovenbirds, as appropriate habitat diminishes.). And yes, by guess who? Others believe blue jays do this to scare off other birds from food sources. Blue Jays can be very aggressive to other birds; they sometimes raid nests, and they have decapitated other birds. At farm and feed stores they sell ground shell for giving to chickens as well, so that’s a good cheap source. A bit of a pain to remove them every time I left and put them back on when I got back. I grew up in Colorado. I think your own findings have answered my questions. I printed pictures of cats from the internet and hung them in my window. Thanks, Edward, for the hello, and the story of your mother’s offerings. After eating seeds birds can sometimes be seen rubbing their beak against a branch or something else. In each group, one or two birds at a time strenuously bobbed up-and-down, up-and-down, fast. The loud groups of blue jays that you hear calling in the trees at this time of year are probably feasting. My picks of garden gear, books, and mulch, mulch more, all things I use myself. Oh dear! They aren’t sterile by any means but that doesn’t seem to deter them. Here it is localized to the Northeast and Eastern Canada that this has been observed. Nothing stops them. (Disclosure: includes affiliate links.). Unlike people, birds can’t wipe off their face with a napkin after a meal. I offer not only oyster shell and egg shells but also deer grain (with calcium) and normals seed. The skull of a buck that I found in the woods years ago and placed in the garden has been completely disfigured by incessantly chewing squirrels, that are presumably also in it for the calcium. They chased him away. I’m guessing that’s it because the squirrels in my front yard have been using the boards on my front porch for sharpening their teeth. While the blue jay is a year-round resident from southern Canada to the Gulf Coast and west to the far edge of the Great Plains, some of them migrate, though their numbers vary from year to year. Margaret, Just last week I saw a tree sparrow actually land on the back of a huge red tail and peck for several seconds before flying away .the swallow had a baby in vicinity Thanks, Sheri. Maybe I’m completely off here, but I wonder if your eggshell-reminiscent paint color attracted them initially. Thank you. Photo via Flickr. I need another bag of bird seed anyway. I have a good half-dozen birds doing the same, and accelerating their efforts, too, Diane. This isn’t what you want. I made egg salad for an event Saturday — 3 DOZEN eggs — and put out ALL the shells afterward…and ALL were gone that afternoon. My secret reason for doing this is that I want more people to become nature addicts like me. The squirrels here are at an all-time high, so don’t get me started on that subject! She seemed to be pecking at the windowsill (above), but.. POSSESSING LARGE BRAINS for their body size, a knack for social networking that requires no internet connection, and keen powers of observation, crows and ravens.. The house was just professionally painted in the fall of 2011 it should no way be destroyed yet. I can scare them off but they come right back. Very interesting findings there. Blue jay gone! I wonder if they, too, could be tempted away by eggshells. It has been drilling holes in the wood on the side of my deck and causing a lot of damage in the 24 hours I noticed/heard this. So I guess the California juncos are not as evolved! Nature is continuously evolving, after all. All kinds of birds, including the chickens the eggs came from, would quickly make off with the egg shells. Why blue jays are such noisy birds ... One or two jays perch in a tree as lookouts. barely picked at the other things. Interesting idea, Vickie. Margaret's weekly public-radio show, from Robin Hood Radio in Sharon, CT, the smallest NPR station in the nation. That hadn’t occurred to me. It went on for several days about a week ago but seems to have stopped. This site uses Akismet to reduce spam. I put out big slabs of beef suet from the butcher at the market and it’s maybe the most popular thing of all here. And then again, from outdoors, on the front of the house. I make my own suet cakes and always include crushed eggshells since I read years ago that birds need this when they are laying eggs to raise their broods. The only way to find out is for everyone who has problems with birds pecking on or bashing into windows to give this a try and let me know how it … — the insect larvae that’s been deposited there. :). It builds an open cup nest in the branches of a tree; both sexes participate. Blue jays can clear out a pile of peanuts very quickly. For what it’s worth, Deborah, we’ve been giving crushed eggshell back to our chickens for years. I watched .. there were 2 other blue jays in the crabapple tree close by .. seemingly attentive to this .. moving around to different perches in the tree. How do I get rid of Blue Jays? So if you have a regional or local birding organization or nature conservancy they may have had calls. For some more information on birds you can read about the common birds of the Rocky Mountains, fun facts about wild turkeys, 7 facts about hummingbirds, or some information about what is molting and why birds do it. In fact they have stripped ALMOST ALL the paint from about a 6-12″ area around 3 sides of the house! Yes, you are correct, Sarah, they like light-colored paint. You and I are nature’s best hope, and I’m glad Doug joined me again to help us learn to support it. Anyway, interesting find on their part and great sleuthing and trouble-shooting on yours :). I get the kind with black sunflower seeds. Thanks a lot. I love hiking, my kids, and nature. It has been drilling holes in the wood on the side of my deck and causing a lot of damage in the 24 hours I noticed/heard this. That’s what the jay, above, is doing with those kernels. WHEN I TALKED to Doug Tallamy in February around the publication date of his latest book, “Nature’s Best Hope,” I didn’t want to go on and on about the advice in it regarding smart fall cleanup, which is one of the ways I know I’ve dramatically shifted the way I manage my own garden compared to 10 or even five years ago. Why is a woodpecker damaging my house and how do I stop it? Though the original articles it refers to—from “Bird Watcher’s Digest” and Cornell Lab of Ornithology’s former membership publication “BirdScope”—are more than 10 years old and not online, this synopsis on Project FeederWatch provides the basic explanation: Limestone, a source of calcium, is often an ingredient in paint (especially pale-colored latex paint birds prefer, apparently). And the more I listen and follow, the healthier I become. Guess not. The theory is that blue jays in the Northeast and Eastern Canada may collect and cache calcium in anticipation of increased needs in nesting season. I kid you not. I sat in wait, determined to find out. This winter (2014/15) the jays started right away but now anywhere on the house they can reach from the snow banks. Offer egg shells, the various online threads suggest, specifically after sterilizing them by boiling or heating in a 250F oven for 20 minutes, to prevent potential salmonella transmission. :) Not sure if it was cayuse and effect, or they just had enough calcium supplies cached. To stop then you need to figure out what they are eating and get … They completely ignored the oyster shell. Â I receive a tiny percent of any purchases you make through these links. Blue jays. We learn something every day thanks to all of you. Did you have them shot? As soon as ground was bare they stopped. Blue jays bob to perfection. I am wondering if those squirrels of yours aren’t simply sharpening their teeth on that buck skull? Highly destructive. A bunch of blue jays let me know there was a snake in my oak tree yesterday! Thanks, Patrick, for your feedback and suggestions as my blue jay adventures continue. I think I will this year. Birds’ beaks tell us a lot about the bird, about what is molting and why birds do it. As an excellent source of sugar, it is an essential energy source during summer, fall, and winter, key seasons for breeding, migration, and maintaining body heat in chilly temperatures.But which birds can you expect to visit your feeders if you offer different types of fruit, including apples, berries, grapes, and even fruit rinds? Blue jays do very well in the presence of humans, and the patchwork of yards (some stocked with bird feeders), fields and woodlands found in rural areas makes for fantastic habitat. And yes, the juncos are on all my feeders, too. We feed crushed eggshells to our chickens instead of grit. I now wonder if the paint too contains an ingredient they are seeking. Thanks for another excellent piece. I think your experience has answered that mystery for me too. So happy to learn about their need for calcium that I will now make sure every winter that they have a little dish of coral calcium from the pile of amendments in the garden shed. Plus, they are colorful and noisy, which people see as “mean”. I have seen dogs and other animals mark their territory by urinating. Yes, the sparrows and cigarette butts from Scientific American a coupe of years back. Does anyone know why it may be doing this and how to stop this destructive behavior? I am guessing, after reading what you had to say, that vermiculite must contain the minerals the Blue Jays are needing. 6-8 at them at a time are wacking away at the house and it sounds like men with hammers. ... lake ice for fishsicles, farm fields, bird feeding stations, crabapple trees and so on. Her latest.. WHAT’S THAT BIRD DOING? ), this is a highly evolved feature and at the same time super basic. Miss the peanuts i usually put out eggshells as an alarm call, alerting other blue jays also off! 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