Travelling on

The first batch of data from 30(05)’s transmitter, revealed by Tim yesterday, demonstrates just how far an Osprey can travel when she sets her mind to it! 30’s autumn migration this season looks set to be a record. She is currently ahead of where she was last year by a day.

The last data we had was 30’s roost site of 2nd September, in northern Andalucia. On 3rd September, she began her day’s flight at 6am, and headed towards the southern coast of Spain. She crossed the Mediterranean to the east of the straits of Gibraltar in the afternoon, just as she did last year, and she made landfall at 3pm. She then travelled another 179km (111 miles) over the next five hours, to her roost site 48km (29 miles) north-east of Kenitra. That day, she migrated a total of 411km (255 miles).

The next morning (4th September) 30 set off at around 6am again, and travelled 572km (355miles) south-west through Morocco, on an almost straight trajectory, as you can see from the map below.

30's journey 3rd and 4th September 2015

30’s journey 3rd and 4th September 2015


Tim mentioned yesterday how similar 30’s current migration is to last year’s, and you can see from the map below how this continues to be the case. The red line is last year’s route, and the green one is this year’s. On 4th September, her roost site was in a spot very close to where she roosted on 5th September last year!

Look how similar this year's path is to last year - red line = 2014, green = 2015

Look how similar this year’s path is to last year – red line = 2014, green line = 2015


Migration is truly mind-blowing, and it’s amazing how Ospreys can remember the way they went and stick to the same route. They clearly have incredible memories, and aim to follow a similar path each year, using the same landmarks to guide them. Factors such as the weather, particularly strong winds, can of course push the birds off-course, but it’s incredible the way they re-adjust and alter their flight path accordingly, as 30 did on the first leg of her journey.

30 is now over halfway to her destination, and she only set off six days ago! So far, she has travelled a total of 2,711km, (1,684 miles) and she only has about another 1,810km (1,125 miles) to go. I wonder where she will be when the next batch of data comes through… Keep an eye on the website to find out!

Don’t forget that you can follow 30’s migration on your own copy of Google Earth by following these simple instructions.

Even though the Ospreys have left Manton Bay, the Lyndon Visitor Centre and Nature Reserve will still be open from 9am-5pm until Sunday 13th September.


One response to “Travelling on”

  1. Jim carr

    Fantastic, it really has been a great year for you all, I find the Migration is really mind blowing, that a Bird can do this year after year is incredible.
    Just imagine if we could do the same…..without the technical help we need to go a few miles….
    In this case the Ospreys are one up on us Humans