Sarah Dal · @sarahdalgulls
460 followers · 3002 posts · Server ecoevo.social

Robert E Fuller short film RSPB Bempton: Seabird Dramas Unfold on Cliffs
youtu.be/o-05J98KI1Q?si=jfzmBV

#Seabirds #RSPB #Bempton

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
459 followers · 2972 posts · Server ecoevo.social

Wales’ biggest Gannet colony suffers severe population crash - numbers on Grassholm have halved following HPAI

nation.cymru/news/wales-bigges

#Gannets #Seabirds #hpai

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
440 followers · 2767 posts · Server ecoevo.social

Reduced breeding success in Great Black-backed Gulls (Larus marinus) due to harness-mounted GPS device

onlinelibrary.wiley.com/doi/10

#Seabirds #ornithology #gulls #gpstagging

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
440 followers · 2767 posts · Server ecoevo.social

"Over five years in the making, a major new feature documentary film PLASTIC PIONEERS - & PLASTIC WARRIORS for UK audiences - investigates the damaging effects plastic pollution is having on our health, lifestyle and wildlife. Following the work of eminent scientists, front line campaigners, and innovative designers working on solutions to the greatest pollution crisis of our time. An eye-opening film that inspires action."

plasticpioneersdocumentary.com

#Seabirds #plasticpollution

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
430 followers · 2708 posts · Server ecoevo.social

Early reports suggest that Little Tern has enjoyed a successful breeding season in parts of Britain in 2023, despite many seabird colonies being devastated by bird flu

birdguides.com/news/early-sign

#birdguides #terns #Seabirds #littleterns

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
430 followers · 2706 posts · Server ecoevo.social
Sarah Dal · @sarahdalgulls
410 followers · 2499 posts · Server ecoevo.social

Again no sign of bird flu in the gulls, which is great. Lots of evidence of rats, but it doesn't look like they really predate the gulls. On the contrary - when we spooked up the colony on arrival, one must have panicked and coughed up a recently eaten young rat! Also saw a couple of pellets containing rat bones, as well as plastic and shellfish.

#Seabirds #gulls #teamgull

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
402 followers · 2349 posts · Server ecoevo.social

Just wondering if the previously excellent World Seabird Twitter Conference will be happening again, ever?
A fantastic example of how great a tool twitter was

seabirds.net/events/wstc/

#wtsc #Seabirds #seabirdgroup

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
398 followers · 2318 posts · Server ecoevo.social

Elsewhere at Walney, reserve staff think they've gotten about 20 Little tern chicks fledged from 10 pairs, which is phenomenal and a new record for the site. The place is doing great now I've left! 🤔

#Seabirds #teamgull #littletern

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
399 followers · 2276 posts · Server ecoevo.social

@javaraptor my tips:
follow everyone who posts anything you find interesting - you can always unfollow them later
Boost anything you find interesting so other people can find it
Favourite so they know you liked it!
Hashtag as much as possible, without search it's the only way to find anything
Read your local timeline, on ecoevo it's brilliant and I've found so many new science folk to follow through it
Follow hashtags! I follow various and related ones, and found lots that way

#gulls #Seabirds

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
393 followers · 2258 posts · Server ecoevo.social

Speaking of the excellent Seabird Group, I'm surprised they don't already have a mastodon? They've been brilliant on EDI issues, and membership gets you a discount at not just Cotswold Outdoor and the Scottish Seabird Centre, but 20% off mooncup. I've been massively impressed by their commitment to this over the past few years.

Of course I can no longer view their twitter account, so I've no idea if this is something that they are talking about, but I hope they are

#Seabirds #seabirdgroup

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
392 followers · 2252 posts · Server ecoevo.social

Was the ratio wildly different in previous years, or was the method flawed? I don't think there's any way to tell

#teamgull #Seabirds

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
385 followers · 2166 posts · Server ecoevo.social

After counting all 4,965 ducks I moved on to counting the juveniles/big chicks in the gull colony. Because we aren't ringing due to HPAI, I am trying to count them with drones.

I need good detail, so rather than an orthomosaic (which can reduce image quality) I flew a 30m high flight with just 10% overlap, and then I'm just going through each picture individually rather than stitching them all together. It's quite sweet seeing the chicks from this angle.

#uav #drone #teamgull #Seabirds

Last updated 1 year ago

Sjurdur Hammer, Ph.D · @sjurdur
243 followers · 327 posts · Server ecoevo.social

I investigate great skua pellets and prey remains to study their diet, and more recently to investigate plastic occurence in the seabird foodchain. Can you guess the prey species?

#ecotoxicology #Seabirds #plastic

Last updated 1 year ago

Individual life histories: neither slow nor fast, just diverse | Proceedings of the Royal Society B: Biological Sciences royalsocietypublishing.org/doi

#Seabirds #ecology #Evolution

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
376 followers · 2037 posts · Server ecoevo.social

We won!! So thrilled for my team who received the Award for 2023 (proud to have written the successful application) 🐦💙🎉

#birdlife #indigenous #esperancetjaltjraak #aboriginalrangers #Seabirds #fisheriesbycatch

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
364 followers · 1994 posts · Server ecoevo.social

"Police are investigating two incidents involving birds after a man reportedly shot an air rifle at a seagull and another was allegedly kicked to death"

nwemail.co.uk/news/23635868.cu

#gulls #Seabirds

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
361 followers · 1977 posts · Server ecoevo.social

I'm also still amazed at how dense the colony still was in 2018 (3,450 pairs) vs 2021 when it was at it's lowest ever, about 500 pairs.

#gulls #drones #Seabirds #uav

Last updated 1 year ago

Sarah Dal · @sarahdalgulls
361 followers · 1976 posts · Server ecoevo.social

So I dug up some old drone imagery; in previous years at Walney I would do 2 drone maps on two consecutive days, and mark a gull in the same place on both as a nest. This time I'm just counting all the gulls visible.

I also found some imagery from when I was first trying out a drone and learning about mapping back in 2018, which is great - I didn't think I'd kept them, and they also fit the 0.7 multiplier

#gulls #Seabirds #drones #uavs #ornithology

Last updated 1 year ago