Chris Redfern

[Chris Redfern @ArcteGeo]

Ringing chicks and nesting Arctic Terns in Northumberland reveals high natal philopatry but dispersal to non-natal sites is mainly by females. Recruitment is not affected by the presence of public visitors and females breed at an earlier age than males.
https://t.co/MHuSMiI7N2

[Chris Redfern @ArcteGeo]

@LancasterJane13 @SteelySeabirder Thanks! Vegetation in lockdown was not likely to have been a factor in abandonment. Reasoning is in Hendry 2022 reference https://t.co/jaiHJ1bYTS

[Chris Redfern @ArcteGeo]

People can be a positive benefit for nesting Arctic Terns: data and results from a Farnes study available here https://t.co/dFb8rxOmyk

[Chris Redfern @ArcteGeo]

On a can of beer: a link to the results of Hilary Brooker-Carey’s 27-year study of Eider ducklings in the Coquet Estuary, Northumberland! #Eider #conservation

[Chris Redfern @ArcteGeo]

@TaniBrishan @EHughes27 Congratulations Tanith- thoroughly deserved!!!!!

[Chris Redfern @ArcteGeo]

@IALFARWI @AnnaAtTheAmbler @phoeb0 @TomCadwallender @MarkAvery Use a system that avoid ambiguity: Common Tern means Sterna hirundo, whereas ‘common tern’ could be any tern that is common.

[Chris Redfern @ArcteGeo]

Geolocator #Arctic_Terns G65 and G40 paired in 2017 & 2018 https://t.co/1NPI9hh7tl. Arctics abandoned Inner Farne in 2021. With return of Rangers in 2022, and G65 and G40, also returned and raised a chick together.

[Chris Redfern @ArcteGeo]

More results from geolocators on #FarneIslands #ArcticTerns:
https://t.co/xijMTpeIOr
Their Indian Ocean traverse gives new insights into #SeabirdMigration ecology, and is a behaviour that may have been maintained since the last ice age. Pdf on email request.

[Chris Redfern @ArcteGeo]

@AshBanwell @TomCadwallender @NorfolkBirds @BLI_Jim @PaulHdigiman White-UAV: chick from Coquet Island 5/7/2015; 1st sighting! We don’t get many from east coast south of Northumberland- many thanks!

[Chris Redfern @ArcteGeo]

@Linacreblogger @NTFarneIslands @NTBirdClub Looks like a Sandwich: pointed 'V' on covert borders (rather then 'U' on rosy), no sign of dark marginal coverts developing.

[Chris Redfern @ArcteGeo]

@JTweedie @SteelySeabirder email me from link in https://t.co/FG6X1wvXbp and I can send you a pdf.

[Chris Redfern @ArcteGeo]

@SteelySeabirder @JTweedie Summary and map detail should be accessible here:
https://t.co/xuVuVQkiVW
Full details, but behind paywall, here:
https://t.co/FG6X1wvXbp

[Chris Redfern @ArcteGeo]

@cormier_tabatha @SteelySeabirder @JTweedie Great news! Best of luck for retrieval and looking forward to finding out where yours have gone!

[Chris Redfern @ArcteGeo]

@Lophophanes Great sighting! Yellow-UFP: chick from Inner Farne 2015. Seen Senegal April 2019; https://t.co/fxyG2EJE8k July 2019; in colony on Coquet Island 10 May 2021.

[Chris Redfern @ArcteGeo]

It’s official: Arctic Tern pairs split up after breeding and only get together again at the colony next year (if not late) https://t.co/1NPI9hh7tl

[Chris Redfern @ArcteGeo]

Geolocator data for Roseate Terns just out in Ibis, open access: https://t.co/1rx2XooXHh
Cold-water upwellings support wintering groups in the Gulf of Guinea, and during migration via the Canary Current Large Marine Ecosystem

[Chris Redfern @ArcteGeo]

@Lophophanes @NTBirdClub @steveholliday11 @NEE_Naturalist @CocoRosy90 @RoseateTernLIFE @WhitleyBirder @ajac0712 @Yellowbrow Thanks for these! White-UCH & -UZJ, Coq I chicks 2015 & 2015; only been seen since on Coq (2019). Red-UAV, Farnes 2013, seen Coq 2016-2019 but once Loch Ryan, D&G, & Port Seton, Lothian.

[Chris Redfern @ArcteGeo]

Toy #kite blown onto Coquet Island had Common Tern tightly #tangled by its wing in control line. Cord cut away & bird fortunately flew after 5 min recovery. #debris #beach