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on Mar 27, 2009
Thanks for the report, Sue. We saw a ton flying by in our yard yesterday. What a treat!
I hope they are using non toxic, biodegradable materials-
this is palo alto afterall, where even the insects are eco-
Since the butterflies clearly don't understand city boundaries (or biases), we had tons of these in the yard yesterday. Lovely!
Several days ago, I noted a density of butterflies on woodside rd near hwy 101, but pulled off the road near crystal springs yesterday just to watch them. I didn't see one butterfly stop to nectar even though I was next to some beautiful lupine. They are on a mission. To me, they mostly seem to be flying from west to east. Has anyone else noted that?
the ones I saw came over from San Francisquito creek & flew northeast towards 101.
Yesterday (3/26) was the first time I ever noticed a butterfly migration! I counted 1 every 3 seconds.
My eyes are opened now. Such a wonder -- it filled me with joy.
Saw hundreds today driving up to Foothills Park. All heading north and east.
To respond to b'fly enthusiast's question about the flight direction...
Where I was, they were going from slightly southeast to slightly northwest --- BUT, I think they were mostly following the vegetation that is forced in that immediate area to follow the direction of the road(s).
I was at the Menlo Park Library, off Alma Street, and they were following the vegetation alongside Alma (which goes northwest). They did start veering more directly north when the vegetation did so.
I'll never forget -- 15 years ago or so when I was a kid at El Carmelo, it was recess and literally thousands of butterflies flew through the field. They would just brush up against you and fly on. Probably one of the most memorable and beautiful things I've ever seen.
I'm in south San Jose, the Almaden Valley, just out in the country near Calero Reservoir. For hours and hours today, thousands upon thousands of these Painted Lady butterflies have been passing through, and not stopping for anything. They are still coming through. South to North. At any second in time you can look around you and count at least 20 of them cruising along. I walked a half my through the large grassy field next to our home and the butterflies were just as thick on the other side. It was a very wide migration, and I've never seen this many come through here since I've been living here for 26 years! Wonderful sight, a miracle!!
I'm seeing lots of them here in San Jose today. Cool! I thought they were falling leaves at first.
I read there are even more through Sunnyvale.
I just got home from a trip to Gilroy Outlets and on our way home,at the highway 101 to 85 interchange we started seeing them. First I thought they were leaves then realized they were insects. I soon realized they were butterflies. They were very thick through the Almaden area, then thinned out in Saratoga. But when I got into Mountain View they got pretty thick again. I have been sitting here watching them out my window. I have lived in Mountain View 42 years and this is the first time I have ever seen this. It is amazing. The only sad part was that I ended up with quite a few of them on splatted on my windshield on my way home.
I am seeing the migration on the other side of the Penninsula. They are flying north through Milpitas and Fremont. Its really beautiful. I saw so many today in my neighborhood in Fremont and around the surrounding areas.
we just got back from walking around the SJ Rosegarden. There were lots of painted lady's migrating from south to north. What a wonderful site
Morgan Hill here...
100,000s of them in the last few days. All flying south to north with no stopping except in trees after sunset....
Anybody know where they are heading for? I've seen hundreds before, but this is new.... Must have been a banner year for them.
I've been sitting at my window looking at these beautiful butterflies for hours. There's about 30 of them every second. What a sight!
I'm a bicyclist. Butterflies are beautiful but they taste bad when you're breathing hard.
To answer George in Morgan Hill. I read that they all migrate from south to north this time of year. They come all of the way up from the southwestern deserts regions: Arizona, New Mexico, Southern California and Northern Mexico, and migrate all of the way up to the great Northwest regions: Oregon, Washinton and British Columbia! They sure look to be in quite a hurry, with no stopping, and a good compass! Or is it follow the leader? Never have seen nearly this many!!
Laughing @ Bob. This was so cool to see today.. And to coincide with Earth Hour? It was a strangely wonderful day. I think I heard they are all going to Davis, but not sure why.
In my backyard today (Sat 3/28), enjoying the weather, and saw squadrons of these guys zooming overhead. Yow. Butterflies on a mission!
This afternoon (Sat 3/28), we saw so many butterflies crossing El Camino at Page Mill, we pulled over into the Palo Alto Square parking lot to watch. There were thousands of butterflies, it was like watching cherry blossoms flutter in the breeze. We drove back to Green Acres, and were surprised to find the butterflies all the way home. Even by Arastradero, there were dozens every few seconds, again like blossoms or leaves in the breeze. We watched for a long time, and the rate never slowed.
We never saw a single butterfly land on anything though. It was like they were on a mission. I wonder why they fly so low to the ground if they don't land? Seems kind of risky. They did fly over houses, but then would dip down low to the ground until they came up on another obstacle. Amazing how fast they can fly, too.
What a treat -- thanks for writing the article, I'm not sure we would have been paying attention otherwise, we might have just assumed we were seeing leaves blowing in the wind.
i saw a butterfly migration at the Pinnacles National Monument earlier this week (although not sure if they were painted ladies.) then what a wonderful surprise to see a migration of painted ladies flittering from one side of our street to the other, all afternoon! like others, i too, have never seen an organic event like this before- delightful!
They have been streaming through Walnut Creek for three days. Om Friday and Saturday, about one every second flew across a big parking and over a high wall faster than I could have imagined.
They're flying through Walnut Creek and Lafayette today. What made me google this (instead of just going "hmm, butterflies") was that there were a *lot* of them, and that they're all flying north. Fly on, butterfly, fly on!
I'm between Livermore and Danville and have been seeing them heading north all week. Amazing!
After watching the Painted Lady migration all week, I decided to try to get a few pix of them, if I could ever find them resting or nectaring. I grabbed my macro lens and headed off. I sat near a boggy area in a field today off 280 as they flew continually over my head. Finally, a few landed. After taking a few pix of several butterflies, I realized that they weren't Painted Ladies, but rather, Calif. Tortoiseshells. I did manage to photograph a few Painted Ladies, too. So, I am wondering if there are two migrations happening concurrently because I saw a lot of Tortoiseshell butterflies today. Anybody know?
I walked down Grove Street here in Palo Alto today and several butterflies passed me. They were rather dark in color so I presume they were the painted ladies. I would not have noticed them had I not read this report, thank you Sue.
Yes there is a simultaneous migration of Painted Ladies and California Tortoiseshells going on. Not just in the Bay Area, but across most of the State. Today I was in the Carson Pass/ Caples Lake / Kirkwood Ski Resort area (elevation 8,000 - 8,550 feet) and saw both Painted Ladies and California Tortoiseshells despite 40-42 degree temperatures and 8-10 feet of snow on the ground.
Carmel Valley -- They came through today 3.29.09 -- South to North. I'm not an enthusiast or expert but based on my observation and info on-line, these must be Painted Ladies.
Thanks to V. cardui for the tortoiseshell migration confirmation. It must have been pretty extraordinary to see butterflies in the snow. I am currently reading about the difference between habitual dispersers and migrating species. Who knew? It's so interesting.
Dang! How lucky you all are. We worked in our yard outside all weekend and kept an eye out around town, didn't see a single butterfly! Of course I've seen them in the past on highways 152 and 5, but I haven't ever seen a migration in Palo Alto! Is it totally over now?
We saw these butterflies (or ones that look an awful lot like 'em) in Mammoth last week while skiing @ 10k ft! They really do go OVER obstacles and not around them! Now we're seeing them around our yard & in the park here in Palo Alto.
I saw plenty of butterflies while walking around the neighborhood, but I saw none while I was doing yard work. I think you need to have your eyes watching around rather than concentrating on your own yards.
The painted lady butterflies have been migrating through our backyard here in Berryessa area of San Jose for almost a week now. Wasn't sure if it was a butterfly or a moth until I caught(and released)one yesterday and identified it using my insect book. Every 2 seconds another pair fly by. Only a few have stopped on the orange tree before taking off again. They are beautiful to see, but I just hope this doesn't mean an increase to damage in the gardens in the near future.
Seeing the migration here too. It just makes me happy to watch them zipping by in such numbers. What a treat!!
I saw a lot of butterflies in Los Altos over the week-end. I had no idea what they were so was really glad to read about them.
Here in the east foothills of the Berryessa area of San Jose we've seen thousands every day flying through our ranch. I'm a native of Sunnyvale and have never seen these that I recall (at least as an adult). Very interesting and thank you for posting this. We wanted to know what was going on. Thank you!
They are flying north, migrating and defiantly on a mission. They are traveling from the CA desert to Oregon/Washington.
We saw them all weekend long passing through our yard. Occasionally, we saw pairs playing, but most where flying very rapidly going north. This is the first time I've noticed migrations in our area, it was really special to watch.
Danville area yesterday off or sycamore valley road. 1000's of them. kids were very interested, caught a few for closer observation (and release) and yes all Painted Ladys. Very amazing site..and kids learned something today which was great experience for them 8 and 6 !
They're currently here in Fremont. I would say at the rate of 1 every 5 seconds at my house.
They're still coming thru in droves down here in the countryside south of San Jose. It's been a few days now. It said in the San Jose Mercury and also in another article that they are on the move from the southern California deserts up to the Davis, CA area. So, disregard my earlier post saying they were heading all the way up to the northwest, I was misinfomed. Wow, there must be millions of them up there in Davis by now. Keep on truckin' you Painted Ladies, and watch out for those darn windshields!
What a lovely treat! I saw thousands on Saturday in Stanford. How determined they seem! I wish them well on their long trek.
Should add that I loved reading everyone's comments. A magical day.
thought i was nutty, but seeing the number of comments and reading up on painted ladies, whew!
i guess this is a treat. for a moment i thought that i had been spending too much time indoors if for the past 31 years i had never noticed this rite of spring. make sure you let everyone you know. many people haven't even noticed!!!!
try catching a few (and releasing of course!) not easy at all! what a way to get exercise tho!
Art Shapiro at UC Davis seems to be the area expert. Here's his take on this year's migration: Web Link
Here north of Livemore, the strong winds today brought the sightings to a stop but by afternoon as the winds subsided they returned, incredible what they must endure.
Monday, March 30th... While driving north on E. Meadow after school today, and especially north of Middlefield (just as the article had said) I pointed these small little butterflies out to my son; all going in the same direction... and so quickly... it was amazing. I've only seen one in Barron Park. I just assumed this must happen every year, but according to several writers.. this is an unusual occurrence. Due to the color description in the article (and because I couldn't remember their name) I called them Mini Monarchs! The best way to view them is to be looking toward a solid mass of green leaved trees, then you see their bright sun-lit wings flickering as they fly. I made the analogy to my son of salmon swimming up against stream... driven to get home. You would think the birds must be having a feast, but I never saw one swoop down and catch one. We carefully picked one up on the road that was wobbling around. I knew it would die of the heat on the hot asphalt. It had the funniest big turned up 'nose'! We set it down in the grass and within a minute it flew away. The article said they would return... flying south in August... I hope they remember the way back through Palo Alto!
Hi I live in Clayton and they seem to be flying in after coming over the mountain from the south goig right down my street headed north. boy MT DIABLO must have been a challenge. go little butterflies!!!
I am from San Jose (north). I was driving on the 280 near Blk Mountain there were thousands of them flying...I felt badly as they hit my windshield. I had not heard of this migration...until a friend told me about it. What a wonderful scene of beauty. While driving along the 280 I noticed that there were more butterflies in the valley areas that were heavily wooded.
Question: When they migrate again to the South in August...will they pass by this way?
Tri-Valley (Pleasanton) What a treat the last several days!!! I've never seen anything like this - amazing! Up over the back neighbors fence - up over our two story house and so on ... all heading north. Out in traffic ... up over the cars ... Yikes - I wish they flew higher!
I've seen so many! I feel sad for the ones flying low over the road, they get run over. But there are so, so, so many.
I love caterpillers.I love butterflys.
I live in Campbell and would love to plant so that the Painted Ladies would have something when they come thru again. Any suggestions as to what I could plant so it would be blooming for them by Late Feb thru early April. Thanks
in my sceince class we have live butterflies its so coollll
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