400 series highways

If you're like me, you regularly hop on the 401 to travel from one part of southern Ontario to another. And while you're doing that you are probably looking for birds!

The 401 has kilometre markers every 2km for most of it's length and every 100m (or is it 200m?) through the GTA, plus the exits are numbered to the nearest kilometre marker so it is easy to keep track of where you are whenever you see an interesting bird. I've been using the kilometre marker system to keep track of my bird records in eBird for a couple of years now and have divided it up into 10km segments, which is long enough so keeping track is reasonable but not too short as to make the information being entered unreasonably vague.

I thought I'd share the location markers for each stetch so if anyone else wants to also record their eBird data in this way they can. Over time with several people recording we could get some interesting patterns on birds like Red-tailed Hawks that are easy to survey for while driving 100+ km/h

Anyways below you'll find a list of all of the 10km stretches with a link (note the first 10 km doesn't yet exist). Just log into eBird then click through each link. That will share a checklist from the location with you and then you'll have the location as an option when you enter a checklist next time. Once you have accepted a checklist you can delete it and the location will still appear in your account.

I'll leave a permanent link to this article at the top of the blog so if you want to come back and get the locations later it will be easy to find. As usual, please email me (mike.burrell.on@gmail.com) if you notice an error.

Once you add the locations you can use them to define an eBird patch to see how you rank compared to other people and before you even do that you can explore a barchart for all of the segments together.

Hwy 401--between KM 10 and 20 
Hwy 401--between KM 20 and 30 
Hwy 401--between KM 30 and 40 
Hwy 401--between KM 40 and 50 
Hwy 401--between KM 50 and 60 
Hwy 401--between KM 60 and 70 
Hwy 401--between KM 70 and 80 
Hwy 401--between KM 80 and 90 
Hwy 401--between KM 90 and 100 
Hwy 401--between KM 100 and 110 
Hwy 401--between KM 110 and 120 
Hwy 401--between KM 120 and 130 
Hwy 401--between KM 130 and 140 
Hwy 401--between KM 140 and 150 
Hwy 401--between KM 150 and 160 
Hwy 401--between KM 160 and 170 
Hwy 401--between KM 170 and 180 
Hwy 401--between KM 180 and 190 
Hwy 401--between KM 190 and 200 
Hwy 401--between KM 200 and 210 
Hwy 401--between KM 210 and 220 
Hwy 401--between KM 220 and 230 
Hwy 401--between KM 230 and 240 
Hwy 401--between KM 240 and 250 
Hwy 401--between KM 250 and 260 
Hwy 401--between KM 260 and 270 
Hwy 401--between KM 270 and 280 
Hwy 401--between KM 280 and 290 
Hwy 401--between KM 290 and 300 
Hwy 401--between KM 300 and 310 
Hwy 401--between KM 310 and 320 
Hwy 401--between KM 320 and 330 
Hwy 401--between KM 330 and 340 
Hwy 401--between KM 340 and 350 
Hwy 401--between KM 350 and 360 
Hwy 401--between KM 360 and 370 
Hwy 401--between KM 370 and 380 
Hwy 401--between KM 380 and 390 
Hwy 401--between KM 390 and 400 
Hwy 401--between KM 400 and 410 
Hwy 401--between KM 410 and 420 
Hwy 401--between KM 420 and 430 
Hwy 401--between KM 430 and 440 
Hwy 401--between KM 440 and 450 
Hwy 401--between KM 450 and 460 
Hwy 401--between KM 460 and 470 
Hwy 401--between KM 470 and 480 
Hwy 401--between KM 480 and 490 
Hwy 401--between KM 490 and 500 
Hwy 401--between KM 500 and 510 
Hwy 401--between KM 510 and 520 
Hwy 401--between KM 520 and 530 
Hwy 401--between KM 530 and 540 
Hwy 401--between KM 540 and 550 
Hwy 401--between KM 550 and 560 
Hwy 401--between KM 560 and 570 
Hwy 401--between KM 570 and 580 
Hwy 401--between KM 580 and 590 
Hwy 401--between KM 590 and 600 
Hwy 401--between KM 600 and 610 
Hwy 401--between KM 610 and 620 
Hwy 401--between KM 620 and 630 
Hwy 401--between KM 630 and 640 
Hwy 401--between KM 640 and 650 
Hwy 401--between KM 650 and 660 
Hwy 401--between KM 660 and 670 
Hwy 401--between KM 670 and 680 
Hwy 401--between KM 680 and 690 
Hwy 401--between KM 690 and 700 
Hwy 401--between KM 700 and 710 
Hwy 401--between KM 710 and 720 
Hwy 401--between KM 720 and 730 
Hwy 401--between KM 730 and 740 
Hwy 401--between KM 740 and 750 
Hwy 401--between KM 750 and 760 
Hwy 401--between KM 760 and 770 
Hwy 401--between KM 770 and 780 
Hwy 401--between KM 780 and 790 
Hwy 401--between KM 790 and 800 
Hwy 401--between KM 800 and 810 
Hwy 401--between KM 810 and 820 
Hwy 401--between KM 820 and Quebec border

I'll add links for the other 400 series highways soon

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