J Hanlon
@jahanlon.bsky.social
360 followers 350 following 270 posts
Cambs-based Birder & freelance ecologist writer/ author natural history & UK vagrancy https://sites.google.com/view/jameshanlonnaturalistecologist/books-media www.jhanlonecology.co.uk
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Reposted by J Hanlon
arielbrunner.bsky.social
Tens of millions of essentially factory farmed poultry are dumped into the countryside each year. They boost the population of mesopredators like foxes, reducing ground nesting bird populations. They are an obvious avian flue hazard. They eat declining reptiles. Turn out they're also a health hazard
britishbirds.bsky.social
Ticks are more likely to carry the bacteria that cause Lyme disease in areas where Common Pheasants Phasianus colchicus are released, according to new research.

Read more: britishbirds.co.uk/journal/arti...
🥇Subscriber Content
jahanlon.bsky.social
Baird’s sandpiper (juv), Rutland Water, 9/10/2025 #birds #birding
Reposted by J Hanlon
docmartin2mc.bsky.social
Thank you to everyone who continues to contribute to our fundraiser. Recent greatest hits from samples sent in by ringers and birders for ID include an Atlas Flycatcher in Spain, and a Ménétries's Warbler in Poland!

www.justgiving.com/fundraising/...
Genetic Identification of Birds - The Aberdeen Wildlife DNA Lab
Help Martin Collinson raise money to support University of Aberdeen Development Trust SCIO
www.justgiving.com
jahanlon.bsky.social
OTD 25 yrs ago a bit of a beauty - West Palearctic's 1st ever Blue-winged warbler on Cape Clear Island. I made it before dark! I wonder what Storm Amy will bring this weekend?
#Twitching #Birds
jahanlon.bsky.social
Nice write up. Never seen one despite a few rockpooling attempts. Wish now I had done more locally when studying Marine zoology at Bangor! Not too many here in Cambs but might have to try your IoW spot next yr, Graeme. 🤞🏻
jahanlon.bsky.social
Didn’t know about that parula. Could do with some S coast mega yankage right now tbh.
jahanlon.bsky.social
No doubt that was around 7th Sept, part of a huge movement of this species over the N Sea. An unprecedented arrival in daylight was noted especially along the East Anglian coast.
jahanlon.bsky.social
One of many suggestions but I’ve never heard of one looking like that. Jury’s still out I think!
jahanlon.bsky.social
Assuming not a hoax, here’s a small unidentified #shark caught by an angler on a S coast beach in U.K that doesn’t match any local/regional species. They’re seeking an id - any ideas? @seatrustwales.bsky.social @iucnshark.bsky.social #Elasmobranchs
jahanlon.bsky.social
I think you’ll need to experiment & report back but I reckon you’ll have to do a line of shrimp a good few hundred miles long 😂
jahanlon.bsky.social
I don’t know what the collective noun is for this species but based on this pic I’d suggest an ‘invisibility’!
jahanlon.bsky.social
Gosh, that’s a pale-headed one. Actually has a super.
Reposted by J Hanlon
joestockwell.bsky.social
Little Bittern sound recorded over Weymouth last night at 1:06am - that ones blown my mind a bit! macaulaylibrary.org/asset/642530...
jahanlon.bsky.social
When 99% are routinely culled by grouse moor operators it’s hardly a surprise! #BanDrivenGrouseShooting
jahanlon.bsky.social
I'd say that's putting it nicely. You can't polish a turd!
jahanlon.bsky.social
Everyone loves a #kingfisher. When I went for a walk at a new site yesterday there was a vocal brood of 6 young! Being fed by at least one parent @cambsbirdclub.bsky.social #birds
Reposted by J Hanlon
rspbscience.bsky.social
Latest government stats show a continued decline in many bird species across the UK 🪶🧪

www.gov.uk/government/s...

These data are made possible by the dedication of expert volunteers, allowing us to track common bird populations for >50 years
Wild bird populations in the UK and England, 1970 to 2024
www.gov.uk
jahanlon.bsky.social
Local pet shop had one when I was a kid. They found it dead on the floor one morning as the tank lid had a large gap.
Unethical & should be banned.