Manitoba Falcon Cam Forum
Other Peregrine Projects => USA Peregrines => Topic started by: The Peregrine Chick on March 22, 2009, 19:05
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Pacific Gas & Electric Company Building
San Francisco, California
The fourth of George's and Gracie's eggs was laid on March 17th and incubation began on the 14th.
In 1999, George was pulled from a nest on the Oakland Bridge (SCPBRG pulls bridge nest chicks when they are at risk) and hack-released him from San Gregorio later that season. Gracie is from an unknown location but was caught and banded a few months after fledging in 2001 (so when she was only a few months old) and re-released.
PG&E Nestbox Cam (http://www2.ucsc.edu/scpbrg/nestcamSF.htm)
As the population increased we began to see Peregrine Falcons in the San Francisco financial district and placed a nest box near a commonly used perch on the PG&E Headquarters Building in 1987. Sixteen years later in 2003, Peregrine Falcons nested for the first time and have been a closely watched fixture of downtown San Francisco ever since.
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I just wanted to give a little update on this nest. Apparently this is a new pair, Dapper Dan and Diamond Lil...Don't ya just love the names.. ;)
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I personally do not follow this nest as closely as I would like to, but several BCAW members do...
THis has been a very tough fledge season for this nest...Hi died after colliding with..(sorry, can't remember), Kiewl sustained a fractured Clavicle and is in rehab. She is expected to make a full recovery. Liwa (the other female) has not been seen for over a week and is feared dead, tho' there are some watchers who continue to look for her. They have beautiful pictures of Liwa (she had to be rescued~no injury) just a few days prior to her disappearance...Both parents regularly return to the ledge and are giving no indication that they are feeding anyone...Needless to say, the ones closest to this nest are heartbroken...
Fledging is so dangerous for these little ones... :'(
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2010 NESTING SEASON
Ok this is the one - first egg on cam right now!! First of the 2010 season maybe??? :o
http://www2.ucsc.edu/scpbrg/falconcamera.htm
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Congratulations to Diamond Lil and Dapper Dan on their first egg! Since I can rarely access this cam, I'm assuming that the same pair is nesting here this year. Hoping for a good year for them.
(http://i1013.photobucket.com/albums/af254/wingshigh/Buckeye/Peregrines/sanfranciscofeb261a.jpg)
I don't know whether this egg or the one in Italy arrived first. :)
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# 2 about 1:20 PST
(http://i847.photobucket.com/albums/ab39/sheilahavoc/oct%202009/Nov%202009%20part%201/nov%20part%202%202009/dec%202009%20part%201/JAN%202010/sf004.jpg)
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Now aren't they beautiful in the sun.
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Now aren't they beautiful in the sun.
;D ;D
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# 3 between dusk last night and dawn this morning
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SGB caught the first 2 hatches here tonight :-* :-* Mom is diligently covering them both with her back to the cam but saw some video she did of them and they are adorable :D
Cam here again if you want to try and catch a peek - first NA hatches I believe.
http://www2.ucsc.edu/scpbrg/nestcamSF.htm
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Oh three now :-* :-*
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How lovely! Little fluff balls, one is still wobbling his head up as the other topples over. the third one isn't very obvious to me. So nice to see chicks again.
Right now Mom seems to be nibbling on shell.
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Protecting the chicks:
(http://i1013.photobucket.com/albums/af254/wingshigh/Buckeye/Peregrines/sfapr151a.jpg)
The little fluff balls:
(http://i1013.photobucket.com/albums/af254/wingshigh/Buckeye/Peregrines/sfapr154a.jpg) (http://i1013.photobucket.com/albums/af254/wingshigh/Buckeye/Peregrines/sfapr155a.jpg)
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Great pictures, Alison -- thanks! Those little fluff balls are irresistable, aren't they?
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Yes, thanks for the great photos of the 3 little cutie pies, Alison!
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The San Francisco chicks will be banded on Monday:
Scientists To Band Baby Falcons On SF Highrise
University of California scientists on Monday will put identification tags on four baby falcons nesting atop a high-rise building ledge in downtown San Francisco
The falcons are perched on the 33rd floor of the PG&E building at 77 Beale St.
Scientists from the UC Santa Cruz Predatory Bird Research Group will place one band on each of the birds' legs: one with a phone number to call if found, the other a visual identification that can be read from afar with binoculars, according to PG&E.
The bands are used to learn about how the population of the endangered peregrine falcon is recovering. The birds are an endangered species in California. There are an estimated 250 nesting pairs left in the state.
Scientists credit the partial recovery of the birds to the banning of the pesticide DDT.
To view the UC Santa Cruz "falcon cam," visit
http://www2.ucsc.edu/scpbrg/nestcamSF.htm.
The banding will take place at noon Monday.
http://cbs5.com/pets/falcon.webcam.peregrine.2.1669204.html
(http://i1013.photobucket.com/albums/af254/wingshigh/Buckeye/Peregrines/image002-75-1.jpg)
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A link to another article on the banding. I haven't been able to access the cam lately, so didn't realize there are four chicks.
http://www.sfexaminer.com/local/Biologist-looking-out-for-falcon-friends-92597554.html
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I haven't been able to acces the webcam either. :( I can hardly believe the banding is about to take place already!
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I've had trouble with both the San Fran and San Jose webcams but not surprising they are run by the same organization and use the same software (Quicktime). My Quicktime version isn't compatible but haven't had time/interest to find out what I need to do. Don't know if that helps anyone else (probably not) but ...
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2011 NESTING SEASON
And not to be outdone - first egg now being reported here too!
http://www2.ucsc.edu/scpbrg/nestdiarySF2011.htm (http://www2.ucsc.edu/scpbrg/nestdiarySF2011.htm)
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Do we know yet if the pair are confirmed as Dapper Dan & Diamond Lil? We had a pair change at this site last year as I recall ...
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Oh, this is so exciting, to see the beginning of this season's eggs being laid! :D
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2 eggs here now...hoping for a 3rd today...brief video of the changing of the "egg" guard..
http://www.youtube.com/watch?v=TGBBaV8dVhs
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Update....3rd egg laid today!!
(http://i815.photobucket.com/albums/zz79/skygirlblue09/2011%20a%20New%20Year/sanfran108.jpg)
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Great photo of the eggs, sgb! :D
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If you're missing the little ones..both sites in CA have hatches today!!
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If you're missing the little ones..both sites in CA have hatches today!!
Wow! Already! ;D 8)
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2012 NESTING SEASON
First Egg was laid last Saturday on the 19th and Fourth egg was laid today and Lil is in incubation mode!
According to the site, first hatch is estimated to be between March 27th and 28th!
Let the season begin! ;D
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First Egg was laid last Saturday on the 19th and Fourth egg was laid today and Lil is in incubation mode!
According to the site, first hatch is estimated to be between March 27th and 28th!
Let the season begin! ;D
Lets hope for a successful season everywhere!! :)
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Two chicks hatched yesterday, March 30th. Lil has been trying to keep them tucked up under her, but they like to squirm it seems !!
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Adorable chickpile at this site! Three little noggins poking out from under Mumbrella! :-* :-* :-*
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Adorable chickpile at this site! Three little noggins poking out from under Mumbrella!
(http://i803.photobucket.com/albums/yy320/Blondechik_2010/US%20Falcons/Sanfran002.jpg)
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The first chick pile of the season, as far as I have seen! And many more to come! :D
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First chickpile I've seen as well, KC! And aren't they just the cutest creatures?!? :-*
And growing in leaps and bounds! :o
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All 4 chicks seem to be thriving at this nestsite. :D They are alone in the nestbox at the moment, all huddled together.
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These chicks are in the waddle faceplant developmental stage. ;) In fact, 2 are waddling around the nestbox, 1 is faceplanted down near the front of the nestbox and the 4th one has managed to hop out of the nestbox and is faceplanted down between the wall and the nestbox.
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One of the adults just landed on the nestledge with a bit of food. No sign of any of the juveniles.
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According to the website, the chicks here (2 males & 2 females) were banded on April 23rd with the 1st chick, "Perry", fledging on May 8th. At different points in time, all 4 ended up on the ground or in situations that would not allow them to regain altitude for flight, so required rescuing and were placed back on the nestledge. However, 1 of the females, "Amelia", died upon her 2nd attempt at fledging, when she crashed into an adjacent building. :'( The other 3 fledglings appeared to be doing well during fledgewatch in early June, though. :)
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2013 NESTING SEASON
as of 22 Feb 2013 - there are two eggs in the nest on the PG&E Building
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Four eggs here now.
http://www.peregrinefalcon-bcaw.net/viewtopic.php?p=223296#p223296
(http://i803.photobucket.com/albums/yy320/Blondechik_2010/US%20Falcons/peregrine037.jpg)
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Update from Nest Diary:
March 14: About one week ago, Diamond Lil disappeared. We do not know her current status, just that she has not returned to the nest ledge. A new female, dubbed "Cher," has been visiting the nest ledge but does not seem inclined to share in incubation duties. Dan has been doing all the incubation but he must also hunt for food to eat. The eggs have been uncovered during these absences and incubation has been uneven. The eggs need about 12 days more incubation. Will the eggs hatch? Will Dan continue to make a heroic effort at incubation? Will the new pair recycle and lay a new set of eggs? We will soon know.
April 1: The new female, known as "Cher" added an egg of her own to the 3-egg clutch on March 29. The new egg was added to the three-egg clutch laid more than a month ago by the prior resident female, "Lil." Dan and Cher are incubating the 4-egg clutch.
April 4: Cher laid a 3rd egg today bringing the total in the nest to 6 (3 are hers and 3 were laid by Lil and will not hatch due to long periods of non-incubation after Lil disappeared). The clutch of six eggs is receiving constant incubation. After Cher contributed an egg to the clutch she became a dependable participant in incubation.
May 9: For almost 3 months, this is the scene falcon-watchers have been observing on the camera--an incubating falcon. Now the second clutch of eggs (six total in the nestbox) has gone beyond the possible hatch window. Soon, we will collect the eggs and deliver them to colleagues who study emerging organic contaminants among sentinel species
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Thanks, Mayshowers, for posting this update.
Is it possible for even the female to adequately cover and successfully incubate six eggs?
I'd rather hope the eggs didn't get "cooked" properly, than have organic contaminants discovered to be the cause of nonviability
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...I'd rather hope the eggs didn't get "cooked" properly, than have organic contaminants discovered to be the cause of nonviability
Yes, thanks for this very interesting update, Mayshowers. I wonder whatever happened to Diamond Lil? ??? And I agree with bcbird. Sure do not hope that they find organic contaminants to be the cause of the nonviability of the eggs.
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You're welcome.
I also wondered about successfully covering six eggs? Perhaps a female, but the male? ??? ???
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Hmmm... If all of the eggs had been viable, the female may have been able to incubate them but as you are thinking, MayShowers, probably not the male. And somehow, I doubt that even the female would have beee able to keep all 6 chicks covered. That would have been an enormous brood, not to mention feeding all of them. :o
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...I'd rather hope the eggs didn't get "cooked" properly, than have organic contaminants discovered to be the cause of nonviability
Yes, thanks for this very interesting update, Mayshowers. I wonder whatever happened to Diamond Lil? ??? And I agree with bcbird. Sure do not hope that they find organic contaminants to be the cause of the nonviability of the eggs.
The eggs could have been non viable right from get go and the reason Cher's eggs didn't hatch.
Posted by a BCAW member. :)
It was my understanding that brooding eggs shuts down the breeding testosterone in the tiercel ... could be why Cher's eggs didn't hatch...even if he did mate with her ...
http://www.peregrinefalcon-bcaw.net/viewtopic.php?p=247262#p247262
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2016 NESTING SEASON
The resident peregrines at this nest are the same as before. The resident female is Clara, and her mate is Fernando el Cohete. They have been incubating four eggs; the first egg was laid way back on February 23. Now, hatching has begun.
This morning:
(http://i1195.photobucket.com/albums/aa393/falcoperegrinus1/April%202016/sj-apr-3-1a_zpsypaqyucz.jpg) (http://s1195.photobucket.com/user/falcoperegrinus1/media/April%202016/sj-apr-3-1a_zpsypaqyucz.jpg.html) (http://i1195.photobucket.com/albums/aa393/falcoperegrinus1/April%202016/sj-apr-3-8a_zpsnd73mavk.jpg) (http://s1195.photobucket.com/user/falcoperegrinus1/media/April%202016/sj-apr-3-8a_zpsnd73mavk.jpg.html)
http://sanjose.granicus.com/MediaPlayer.php?publish_id=91 (http://sanjose.granicus.com/MediaPlayer.php?publish_id=91)
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The first North American chick of the year.
The first pic shows the first glimpse of the tiny chick, just to the right of the egg. Clara had already consumed most of the eggshell.
(http://i1195.photobucket.com/albums/aa393/falcoperegrinus1/April%202016/sj-apr-3-12a_zpskerdxjum.jpg) (http://s1195.photobucket.com/user/falcoperegrinus1/media/April%202016/sj-apr-3-12a_zpskerdxjum.jpg.html) (http://i1195.photobucket.com/albums/aa393/falcoperegrinus1/April%202016/sj-apr-3-25a_zpsfkyg7eug.jpg) (http://s1195.photobucket.com/user/falcoperegrinus1/media/April%202016/sj-apr-3-25a_zpsfkyg7eug.jpg.html)
(http://i1195.photobucket.com/albums/aa393/falcoperegrinus1/April%202016/sj-apr-3-26a_zpsmqcefh9o.jpg) (http://s1195.photobucket.com/user/falcoperegrinus1/media/April%202016/sj-apr-3-26a_zpsmqcefh9o.jpg.html)
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Two little fluffballs now!
(http://i1195.photobucket.com/albums/aa393/falcoperegrinus1/April%202016/sj-apr-4-25a_zpspcozpfhv.jpg) (http://s1195.photobucket.com/user/falcoperegrinus1/media/April%202016/sj-apr-4-25a_zpspcozpfhv.jpg.html) (http://i1195.photobucket.com/albums/aa393/falcoperegrinus1/April%202016/sj-apr-4-26a_zpsfq571iwp.jpg) (http://s1195.photobucket.com/user/falcoperegrinus1/media/April%202016/sj-apr-4-26a_zpsfq571iwp.jpg.html)
(http://i1195.photobucket.com/albums/aa393/falcoperegrinus1/April%202016/sj-apr-4-27a_zpsqswksvpq.jpg) (http://s1195.photobucket.com/user/falcoperegrinus1/media/April%202016/sj-apr-4-27a_zpsqswksvpq.jpg.html)
Then Mom was back in a flurry of feet and feathers to cover the chicks again.
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2018 NESTING SEASON
This year, the San Francisco pair were the very first on this continent, or in Europe, to start their season.
The first egg was laid on February 14, the earliest ever for this nest.
(https://picload.org/image/daiawppr/sf-feb-14-9a.jpg)
https://www.pge.com/en_US/residential/in-your-community/local-environment/peregrine-falcons/peregrine-falcons.page?WT.mc_id=Vanity_falconcam (https://www.pge.com/en_US/residential/in-your-community/local-environment/peregrine-falcons/peregrine-falcons.page?WT.mc_id=Vanity_falconcam)
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Hatching has now begun.
This morning: a good sized pip is visible in the second pic.
(https://picload.org/image/daiawpli/sf-mar-25-1a.jpg) (https://picload.org/image/daiawplw/sf-mar-25-3a.jpg)
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This evening, as Mom took a short break to eat:
(https://picload.org/image/daiawpca/sf-mar-25-21a.jpg) (https://picload.org/image/daiawpcl/sf-mar-25-22a.jpg)
I could see movement inside the egg.
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The first chick of the year has hatched!
(https://picload.org/image/daiogioi/sf-mar-26-3a.jpg) (https://picload.org/image/daiogiow/sf-mar-26-4a.jpg)
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A second chick has now hatched!
Two beautiful, fluffy white little chicks:
(https://picload.org/image/daioigia/sf-mar-26-12a.jpg) (https://picload.org/image/daioigil/sf-mar-26-13a.jpg)
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2019 NESTING SEASON
First egg of the season laid today - thanks to Angelique on BCAW FB for the heads up. Cher is currently laying on her egg so can't get a capture. :-*
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This is the earliest date ever for the first egg at this site. Last year was the previous record, with the first egg being laid on February 13.
First glimpse of the beautiful egg:
(https://i.ibb.co/YkV0QW7/sf-feb-8-10a.jpg) (https://ibb.co/QNxDQcF) (https://i.ibb.co/Jt5Wh0w/sf-feb-8-11a.jpg) (https://ibb.co/V920Krc) (https://i.ibb.co/1Xtbkpv/sf-feb-8-15a.jpg) (https://ibb.co/09RQxWD)
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Beautiful, thank you Alison!
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:) :) :) Thank you carly for this much appreciated information of this nest site. Thank you Alison for your photos. As always, they are great. Is there a live cam and link. Here's hoping. ;D
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hi TPC!
There is a link to the web cam site: https://www.pge.com/en_US/residential/in-your-community/local-environment/peregrine-falcons/peregrine-falcons.page (https://www.pge.com/en_US/residential/in-your-community/local-environment/peregrine-falcons/peregrine-falcons.page)
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Update!!!
Egg #2 is here today so she laid this egg on the 7th! The cam wasn't pointed at the box then so we didn't know until it moved yesterday to show us the tray!
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February 12th - 3 eggs this morning. I watched last night and there were only 2 when I retired for the evening so laid overnight.
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Three babies hatched this week on the PG&E building.
Spring is here!!
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Thanks mspeach! Great webcam view of three fluffies!
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Note there are a few new links listed below - best to update your bookmarks if this one of your favourite nestsites.
1. Yahoo has stopped providing group discussion services so many discussion groups have moved to Groups.io as it operates in almost the same way. If you were a registered member, you may need to re-register (depends on how they decided to move across to the new platform). If you were a member and this is all new to you, contact the PG&E Falcon Groups Forum Administrator.
2. There is also a new website link for the Santa Cruz Predatory Bird Research Group
3. There is a new link to the webcam on a revised/updated PG&E webpage.
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2021 NESTING SEASON
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2022 NESTING SEASON
If I can find reports of how the birds did - or news stories - will post them here.
If anyone has a synopsis or something similar, please send to me and I can add them even though this thread is locked.