Saturday, 30 April 2016

Thrash with thrushes


Yesterday and today few hundreds of thrushes were migrating and feeding on the field in front of the Ribachinskaya trap. We caught 52 of them for these two days: 26 Red-throated (Turdus ruficollis), 19 Naumann’s (Turdus naumanni), 5 Dusky (Turdus eunomus) and by one Black-throated (Turdus atrogularis) and Song Thrush (Turdus philomelos) . 

And of cause, as every year, problems occurred with distinguishing sex, age and even sometimes species (in Dusky – Naumann’s and Red-throated – Black-throated). So we have a question to our colleagues from Finland who spent many time last year at our station looking at thrushes: Jari, what did you finally find out???

Together with thrushes Sparrowhawks (Accipiter nisus) migrating because it is so nice for them to have food storage flying by itself. Two females were ringed today.



 Dusky Thrush, adult

  



Naumann’s Thrush, male, subadult
   



     Red-throated Thrush, male, subadult

                       


                                                          Black-throated Thrush, male, adult
   



Sparrowhawk, female





No comments:

Post a Comment