If you do the math on the ability of this species to reproduce (2-3 nestings with 4-7 chicks per nesting) and the average life span (roughly 12 years), you realize how eliminating one breeding pair has the potential to have a tremendous benefit on species diversity, even within a small area. Kate: Sounds like you have had a lot of success. The Huber trap is a great idea. There are also others that are nice. Here is the web site for one: http://www.vanerttraps.com/universal.htm You may be aware of this, but I just think this caution bears saying for those who are reading: The one problem with putting in-box traps in a bank of martin houses is that you are likely to trap native birds as well. You have to monitor these kinds of traps hourly (which might be hard given the height of them) to make sure that the trapped bird is the intended target species. If it is not, you actually risk the life of the native bird(s), which, of course, is illegal as well as inhumane. So monitoring is absolutely essential. I would agree with everything else that you have mentioned. Certainly the males are the ones that control the area and have the most potential to harm native birds through passive and active competition. Most people who do this would agree that one of the best ways to catch them is with in-box traps during the heat of the nesting season. They are very saavy about ground traps. You can sometimes bait the ground traps with nesting materials that are glued to a heavy piece of wood (ripped plastic tarp material, trash, tissues, yarn, etc.). The best season to catch the adult males (and females) is the early spring. During the summer, it is best to use a ground trap baited with white bread. You can catch young birds and females by the dozen this way. I have included a link for a very good repeating ground trap. Good luck to you Rose. I think that everything here is really true and if more people would consider doing a small piece of this big problem species diversity could be noticably improved. Of course, this is all contingent on the laws in Canada. Here is a link that might be useful: Repeating Ground Trap

Yes, I get mobs of TRES and I worry each time they will ovewehlm the other birds but they don't. In my yard I have two boxes paired (about 30 feet apart) on the east side of the house, then in the back yard I have two boxes paired on the west side of the house and in the front yard I have two boxes paired on the west side. The boxes on the east are sortof in sight of the boxes in the back west side (a big tree is inbetween) and are about 68 yards from them. The pairs of boxes in the front west are in sight of the boxes in the back west and are about 64 yards apart. I normally have three or four pairs of TRES nesting and a pair of Blues and sometimes a pair of Dees too in our yard. Then I have three boxes at the back of our lot, not in sight of any of the yard boxes and are over 100 yard away from the yard boxes, these normally have two pairs of TRES and one pair of Blues. Then about a half mile away is a park where I had five (now seven) nestboxes. I normally have two or three pairs of TRES and a pair of Blues, may be different this year with the extra two boxes. So as you can see we have lots and lots of TRES in the area. They were mobbing the Blues yesterday but mom is incubating what I think are five eggs so I am not too worried about the TRES this year since the Blues are so far ahead. Weather has been pretty cool here lately so the TRES aren't real serious yet. Last year the TRES kept chasing away the Dees from the paired box (TRES wanted one and the Dees had started a nest in the other). I added a sparrow spooker and the TRES just used it as a perch. The TRES didn't deter the Dees at all though and once the Dees laid their first egg, I added a wren guard. By this time the TRES were nestbuilding so they weren't worried about the paired box anymore. Good luck, hope yours Blues renest! Donna

Hi Kathleen- I'll address you since the other posts are old. I am so very sorry that you have experienced this. Did you read what the responses were to the older post of one that lost a bluebird on the nest? I would just repeat everything that they said. If absolutely no sign of injury, I would suspect lawn pesticides, but considering what happened to the 1st person that posted & didn't see signs of injury on her bluebird, it did turn out to be house sparrows. I would highly suspect this. Do you think the female is dead too? If so, again I would be suspicious of HOSP. Answering your question, the male would not starve himself, nor is he able to brood eggs. If the female died too, the eggs wouldn't have hatched because the female is the one to incubate the eggs. She has a brooding patch on her lower abdomen that the male doesn't have. If she is alive, she may not be returning to nest because of the failed nest situation, especially if there was foul play. Make sure you know that she is not returning before removing the nest & eggs. If she is alive, she will probably try to find a new mate. Without repeating too much, make sure your birdhouse is on a pole with a baffle & put a sparrow spooker up after the 1st egg. If you know for sure that the nest has been abandoned & you don't get any activity, you may want to change the location of the box (birdhouse). If you immediately get a house sparrow setting up shop, then you'll know that was most likely the culprit. Again, if female is not returning, now would be the time to get a Van Ert trap for your house to trap the male & female HOSP. If you do, make sure you are monitoring every hour if possible so you don't trap a native bird. They can die in there if without food for too long. One of the previous posts left a website for the Van Ert trap. Again, the previous posts left great advice for your situation. This site is not as active as it used to be for bluebirders, so you may want to post to bluebirdnut.com. Lots of bluebird experts are on that site like this one used to have. That's where I go whenever I need advice. BTW, I lived in Atlanta for ten years (live in AL now). Very sorry to hear about your bluebird tragedy. Hope you'll have another pair come for a future nesting, but definitely get that sparrow spooker!

I went out today to check the TRES house to see if another egg had been laid. As I stood next to the house, I could hear the Mother flitting about inside. So I knocked on the side of the house to see if she would fly out. She stuck her head out and looked right, then left where I was standing. She staired at me for maybe 30 seconds (as if to say, "yes, may I help you"). She disapeared back inside. Again I knocked. She stuck her head back out and looked straight at me for another 20 to 30 seconds. She went back in, so I opened the box and looked in with my mirror. She was hunkered down on those eggs and nothing I could do was going to pry her off. She had some real moxie, some real chutzpah. I closed the box and walked back to the house. I am still smiling and laugh out loud every time I picture this in my mind. Can you imagine the nerves of steele it took for this little bird to protect her eggs from this big hulking monster (me) looking at her and her eggs. What an inspiration and life lesson these little birds can teach us. Phil