tag:blogger.com,1999:blog-3660809782905042528.post8449728890993266728..comments2023-09-07T08:13:39.842-07:00Comments on Chip Notes - eBird Buzz: eBird animated occurrence maps -- first batchBrian Sullivanhttp://www.blogger.com/profile/12018034919522859524noreply@blogger.comBlogger33125tag:blogger.com,1999:blog-3660809782905042528.post-44503495365403803922013-09-06T14:47:37.707-07:002013-09-06T14:47:37.707-07:00We are still working on these actively and hoping ...We are still working on these actively and hoping to post some new ones in the next few months! Some of the hawks you mention have been run, but not all of them.Marshall Iliffhttps://www.blogger.com/profile/10633630255805952203noreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-69491059681086071242013-08-30T11:33:08.249-07:002013-08-30T11:33:08.249-07:00Specifically, we would like the Cooper's Hawk,...Specifically, we would like the Cooper's Hawk, Red-shouldered Hawk, Red-tailed Hawk, Ferruginous hawk, golden eagle, kestrel, merlin, northern harrier, Sharp-shinned hawk, and bald eagleQuailDochttps://www.blogger.com/profile/11332119415737728105noreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-50006590313219510822013-08-30T11:23:33.230-07:002013-08-30T11:23:33.230-07:00Hi! Still doing these? We would really like to s...Hi! Still doing these? We would really like to see raptors; especially predators of quail. Thanks!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-19654460668046881682013-03-13T07:41:30.922-07:002013-03-13T07:41:30.922-07:00I LOVE these maps. I wish your list was in some so...I LOVE these maps. I wish your list was in some sort of order that would help us find a bird in the list. Thanks, Glenn Wilson Broome Couunty NYAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-63016400978121978472012-08-11T13:44:28.810-07:002012-08-11T13:44:28.810-07:00I live in Calif. and really like these maps for mi...I live in Calif. and really like these maps for migration info.<br />Could you maybe add more western birds, like:<br />Bullocks Oriole, Hooded Oriole,Western wood pewee.Patricia Shoupenoreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-34071531483462144572011-06-23T06:50:45.565-07:002011-06-23T06:50:45.565-07:00The STEM animated maps can be paused (Windows 7 us...The STEM animated maps can be paused (Windows 7 using Chrome or Firefox in my test) by clicking and holding on the window's minimize, maximize, or close buttons. Then to resume, move the mouse pointer off the button and release. Elegant? No. Functional? Yes.Tom F.noreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-35483619670845203092011-04-09T21:04:48.647-07:002011-04-09T21:04:48.647-07:00... Not only "pause" animation, but also...... Not only "pause" animation, but also "zoom" in and out from a point.....Dan Cnoreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-60644398009095201182011-03-29T06:31:08.027-07:002011-03-29T06:31:08.027-07:00Does anyone know how to pause or slow down the ani...Does anyone know how to pause or slow down the animation?Anonymoushttps://www.blogger.com/profile/08993482415208145529noreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-8455100331563437182011-03-03T10:01:04.976-08:002011-03-03T10:01:04.976-08:00Hi there - these occurrence maps are breath-taking...Hi there - these occurrence maps are breath-taking! I was noting the American Pipit map and saw that posts on spring migration were welcome here. I only recently started posting my observations on eBird, but noted American Pipits consistently and in great numbers all winter long - from about October until mid-February - in two particular fields (I walk past them twice a day with my dogs) here in suburban Pflugerville (outside of Austin.) Then, around February 27th, they, almost literally, disappeared from those fields and I have not seen a single one in almost three days! I will keep watching and posting... regards, HFAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-38679562123774657382011-02-24T19:18:35.070-08:002011-02-24T19:18:35.070-08:00Very cool, and a big eye opener to birds I was mis...Very cool, and a big eye opener to birds I was missing during migration. I have new goals. Thanks.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-66873940141844633292011-01-13T18:41:03.242-08:002011-01-13T18:41:03.242-08:00Nice work! These maps are thought provoking. I was...Nice work! These maps are thought provoking. I was just looking at the maps for the American Pipit. In Texas in autumn and winter, the graph shows really "hot" in the populated corridor from Dallas/Fort Worth, down on through Austin, then San Antonio, and on down to the Valley with hot spots along the highly birded coastal bend near Aransas & Corpus Christie. I wonder if they aren't equally as numerous through out the lesser birded areas in throughout central Oklahoma & Texas.meanjeanhttps://www.blogger.com/profile/13599200507789580327noreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-21386732133146524832011-01-10T14:34:55.064-08:002011-01-10T14:34:55.064-08:00These are wonderful! I would be interested in see...These are wonderful! I would be interested in seeing the map for the Sandhill Crane, Harris's Sparrow and any of the Longspurs.Rudihttps://www.blogger.com/profile/17787399591591714019noreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-26017018981424771102011-01-05T11:43:45.333-08:002011-01-05T11:43:45.333-08:00There is something wrong with the Kentucky Warbler...There is something wrong with the Kentucky Warbler map as it shows them in the Adirondacks of Northern NY and they are never found in that area.CNYBirdernoreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-73416897311148397062010-12-29T05:28:58.561-08:002010-12-29T05:28:58.561-08:00'Too bad they stop at the US borders. The bird...'Too bad they stop at the US borders. The birds don't! Will the maps be expanded (north and south) in the future? 'Hope so.David Patriquinnoreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-75747417796392408392010-12-28T17:12:47.648-08:002010-12-28T17:12:47.648-08:00It is interesting that Willow Flycatcher shows ess...It is interesting that Willow Flycatcher shows essentially no real predicted detection during spring or fall migration, perhaps not surprising. What then should one make of that odd streak of early detection in Oklahoma-Arkansas?<br /><br />David MuthDavid Muthnoreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-89451225859619715942010-12-28T17:05:29.454-08:002010-12-28T17:05:29.454-08:00Er...make that Brown-headed not Red-breasted Nutha...Er...make that Brown-headed not Red-breasted Nuthatch.<br /><br />David MuthDavid Muthnoreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-85408112635476537272010-12-28T17:01:51.205-08:002010-12-28T17:01:51.205-08:00Marshall:
Great stuff. On RBNU, you are right tha...Marshall:<br /><br />Great stuff. On RBNU, you are right that this is a case where the model fails in assuming a low density at the periphery--for Louisiana you can be assured that RBNU absolutely does not occur in the Mississippi alluvial valley or the delta--it should show clean, disjunct whitened hot spots west and east of the river with no bleed into the coastal zone.<br /><br />David MuthDavid Muthnoreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-40101018122091694452010-12-22T09:38:08.612-08:002010-12-22T09:38:08.612-08:00This is wonderful! I would love to see data for th...This is wonderful! I would love to see data for the Sandhill Cranes. We drive several hours every year to see these giant birds when they winter and court in California's Central Valley. Then they take off for Alaska and even Siberia to raise their young. There is an entirely separate migration path from the Platte River to Canada. I'm sure this would be a great representation.Danine Cozzenshttps://www.blogger.com/profile/12634381770398173029noreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-44772674319944001922010-12-17T12:45:11.535-08:002010-12-17T12:45:11.535-08:00Fair enoughFair enoughReuven Martinhttps://www.blogger.com/profile/12841266154897629313noreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-33941206776255726462010-12-15T14:08:56.381-08:002010-12-15T14:08:56.381-08:00Reuven_M: Data from Canada was not included becaus...Reuven_M: Data from Canada was not included because the remote-sensed variables that we are using come from the US government, including the US Climatic Atlas, the US Census, and NLCD (National Land Cover Dataset). We are currently exploring possibilities for remote-sensed variables that would not be limited by international boundaries, but for the time being, these are not easy to come by an not integrated into our spatial database.<br /><br />Good question, and we look forward to working with data from Canada (and Mexico, Peru, New Zealand, and Madagascar!) in the future.Marshall Iliffhttps://www.blogger.com/profile/10633630255805952203noreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-43752644341182678232010-12-15T13:16:28.590-08:002010-12-15T13:16:28.590-08:00Any particular reason the southern parts of Canada...Any particular reason the southern parts of Canada with just as much data as the US weren't included?Reuven Martinhttps://www.blogger.com/profile/12841266154897629313noreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-63000030471145770892010-12-09T11:44:02.703-08:002010-12-09T11:44:02.703-08:00Tom A: These maps really do dampen outliers (in so...Tom A: These maps really do dampen outliers (in some cases), and in others they create outliers where they don't exist! (See Brown-headed Nuthatch discussion below). For this reason, we really value the critiques of our 'Chip notes' readers.<br /><br />In some cases of species at the edges of their ranges, the model is detecting a signal but the scale is set such that it is not showing up on the maps. Note that the Swainson's Hawk scale peaks at 10% (i.e., eastern Colorado) and even in places like eastern Washington, where a regular if low density breeder, it can be hard to detect their occurrence and normal seasonal changes in detectability (or in some cases, birder activity) cause it to disappear. Exploring the eBird frequency in this area reveals low frequencies of 1-5%.<br /><br />For these models to predict vagrant events (like Swainson's Hawk in the East), it would require a different approach altogether. Try thinking about what your probability is of finding a Swainson's Hawk at most places in the East on a given hour of birding on a one mile walk. Granted, from Sep-Nov it is vastly higher than from Jan-Feb! Probably 0.00001 or lower even at peak seasons. Cape May Point, is, of course, an exception. But even still, when considering the effort (i.e., not a full day on a hawkwatch), it really is low even at Cape May (where Swainson's Hawk is annual in small numbers).<br /><br />To explore vagrant records, we recommend the standard eBird grid maps or point maps. http://ebird.org/ebird/map/swahaw?neg=true&_neg=on<br /><br />Dawn: The raw eBird data does not have any Indiana Brown-headed Nuthaches (BHNU), as seen by the grid maps here: http://ebird.org/ebird/map/bnhnut?neg=true&_neg=on (zoom in for close view)<br /><br />Your question highlights the difference between raw data and models. The model predicts a low incidence of BHNU in southern Indiana and Kentucky, another area where they don;t occur. This is surely due to a combination of 1) seemingly appropriate habitat; 2) sparse data, which forces the model to extrapolate into these regions without enough checklists to train the model that they actually don't occur there. <br /><br />BHNU is particularly interesting because their range is essentially binary: they either occur, or don't. The model is showing gradation, and is trained to do so because most bird distribution does blur at the edges. In this case, we are certainly not trying to add a bird to the Indiana state list, but we do appreciate you pointing out that the model is overextrapolating in that region.<br /><br />In interesting question for us will be t try to learn how to teach the model to better show <br />In this case, I would also suggest that most areas with a predicted occurrence that is light orange are areas where BHNU does NOT occur; the ones with solid white define the actual range. One exception is southern Maryland, where BHNU is locally common, but absent from all areas without pines. <br /><br />Mike D: One of several research questions is how to adapt these maps to look for differences between years.<br /><br />As the eBird database grows, it will be easier to run these models using single years of data. Now, for them to be good, we need to combine multiple years which immediately make sit impossible to look across years. But certainly, one of our ultimate goals is to use these to develop year to year trends, detect declines etc. The answer until then is please continue to help us grow the database!<br /><br />Charles S.: We do hope to continue working with the visualization of this data, and one day hope to have a play/pause button on these maps.Marshall Iliffhttps://www.blogger.com/profile/10633630255805952203noreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-66106017441909890562010-12-09T07:42:47.194-08:002010-12-09T07:42:47.194-08:00Could we have a feed on that page so we can be not...Could we have a feed on that page so we can be notified of updates in our blog readers? Thanks!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-85895535924008540492010-12-08T13:39:00.418-08:002010-12-08T13:39:00.418-08:00Are these maps going to work for species that vary...Are these maps going to work for species that vary in distribution/abundance from year to year? I thought dickcissel was in this category, and of course irruptive species are another big example.Mike Duchekhttps://www.blogger.com/profile/00715130315069911205noreply@blogger.comtag:blogger.com,1999:blog-3660809782905042528.post-86591299931696317232010-12-08T12:23:55.425-08:002010-12-08T12:23:55.425-08:00These maps aren't THE coolest thing I've e...These maps aren't THE coolest thing I've ever seen, but they're WAY UP THERE on the list. But the BHNU map looks like the species occurred in several southern Indiana counties on May 24, 2008. I'm skeptical. A quick search of IN-Bird-L shows that BHNU was not reported in Indiana that day or any other. And Kenneth Brock's "Birds of Indiana" calls the species "hypothetical" in the state. The maps should show all of Indiana to be absent of BNHU, always. Why does it show them in Indiana?Dawn Hewittnoreply@blogger.com