TrackingTalons @TrackingTalons

We have been studying raptors in northern California for 40 years. In particular, our research has been trying to understand a population of Swainson's Hawks. Joined December 2018

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Ron DeSantis @GovRonDeSantis

3 years ago

Governor Ron DeSantis holds an accountability roundtable for mRNA shots.

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What do #swifts eat? - a thread 🐦 more accurately what do they feed their nestlings 🐣 as this is from 3 lumps of swift regurgitate that @GrahamDenny9 collected from adults coming back to nests @Rothamsted @Rothamsted_RIS #farming #wildlife #wildbirds #ornithology

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Wouter Vansteelant @WMGVs

3 years ago

Avian influenza is a very nasty disease. And also raptors are at risk. Either by scavenging on diseased birds, or preying on them. The last meal of this Marsh Harrier, dying a miserable death, may well have been an infected duck or coot.

Dirk van Straalen @DirkStraalen

3 years ago

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John Flesher @JohnFlesher

3 years ago

My latest, with AP colleagues Christina Larson and Patrick Whittle: a look at once-troubled wildlife species now causing problems for others. apnews.com/article/scienc…

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TrackingTalons @TrackingTalons

3 years ago

This year the Swainson's hawks in our area seem late. Probably a week behind most years on average. This guy is only around 3 weeks post-hatch.

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TrackingTalons @TrackingTalons

3 years ago

Hey entomology Twitter, can anyone tell me about this penstemon pollinator in Northern California?

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TrackingTalons @TrackingTalons

4 years ago

Sometimes nature conspires to prevent you from doing your work. Like when this giant swallowtail showed up on this phlox in the yard. Loved seeing the airfoil form in its wings in slow motion.

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Raptor Research Foundation @research_raptor

4 years ago

RRF is pleased to announce a Virtual Speaker Series organized by the Early Career Raptor Research Committee. ECRRC will host @arjundevamar on July 21, @RuthTingay on Aug 18, and @wildfarms on Sept 15! Students and early career members with active memberships are invited to attend

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Sophianeⵣ is Team Hoary🦇🦇 @HonkIfUrHoary

4 years ago

I’m ready to start absolute chaos on Nextdoor.

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Eneko Arrondo @BIOEAF

4 years ago

comunicacion.jcyl.es/web/jcyl/Comun… One hundred griffon vultures poisoned un Spain. @4Vultures @and_san_vult @munirvirani @YayVultures @ron_efrat

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TrackingTalons @TrackingTalons

4 years ago

We tagged her as a nestling in 2017 and we're hoping to learn about recruitment. Well, I guess she's teaching us. Most individuals are nest building, and a number have already laid eggs. This bird still hasn't figured out which state she wants to be in.

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TrackingTalons @TrackingTalons

4 years ago

So this Swainson's hawk should be setting up to breed for the first time this year. She's not... She's all over the place. The yellow circle (top center) represents the average territory size in this population.

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Andrew Sharp @Andrew_Sharp_1

4 years ago

** Raptor Biologists/ People that study Peregrine Falcons ** So I had an AWESOME sighting today at the hawk watch: a Peregrine Falcon migrated past with some sort of tracking unit backpack attached (I could see a little bump on the back plus antenna) ⬇️

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TrackingTalons @TrackingTalons

4 years ago

She's alive! She may be the oldest known living Swainson's Hawk. Fledged in 1998, she started breeding in 2000. She seems to be on her third mate - or at least her second mate hasn't shown up yet and she was mating with her next-door neighbor. Did she break up another pair??

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TrackingTalons @TrackingTalons

4 years ago

As @birdturntable pointed out yesterday, mortality is already very high for young raptors - probably at least 50% in their first year. For A9 to make it this long is really quite impressive when the odds were stacked against him.

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TrackingTalons @TrackingTalons

4 years ago

However, this February farmers found him in a field in Tolima, Colombia. He was tired, but otherwise healthy and released after this picture. That means he made it down to South America from California, back to North America, and back down to South America. 2/3

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TrackingTalons @TrackingTalons

4 years ago

This is blue A9 - he was the last Swainson's hawk fledged in 2019. He fledged a month later than most. He likely only had a couple of weeks. I didn't think he had any real chance of making it through even his first migration. 1/3

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Arjun Amar @arjundevamar

4 years ago

So sorry to hear about the death of Nick Williams @TheFalconBirder He made a considerable contribution to the conservation of raptors, with the CMS @BonnConvention raptors MOU

BirdWatch Ireland @BirdWatchIE

4 years ago

So sorry to hear about the death of Nick Williams @TheFalconBirder He made a considerable contribution to the conservation of raptors, with the CMS @BonnConvention raptors MOU

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Ugo Mellone @MelloneUgo

4 years ago

I am very excited to see that finally this project has been finalized. Unfortunately, Michele Panuccio cannot see it, but I believe he would have been more than satisfied, and already looking forward to going back in the field to fill new knowledge gaps.

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TrackingTalons @TrackingTalons

4 years ago

Two Swainson's hawks born two years apart from the same California population. Followed the same migration route up. Both hanging out south of Yuma, AZ. Could it be love??