But first some news about the Conder Pool Common Terns, including some behaviour by an adult Common Tern towards a chick, and some other behavioral traits I've never observed before.
In the video below, the adult tern perched at the far left hand of the raft, suddenly pounces on the chick and appears to stab at it with its bill before it escapes and runs off.
I made the following trimmed video at half speed where the aggression by the adult is more obvious.
This attack by the adult tern isn't the only odd behavior surrounding these birds. I met Ian Hartley who gave me some news about young chicks gone missing and some dead which he had removed from the raft earlier. This prompts the suspected cause to be starvation, or in the case of those missing from the raft, a Barn Owl which daily hunts Conder Pool, and has done for some time now.
There has been a lot of mayhem in the colony recently, with chicks fighting each other and various adults over fish. In one incident, the 'wrong' chick grabbed a fish and the adult snatched it back and flew off before the chick could spit it out. There's been some chick mortality recently, perhaps because of all the competition over food coming in. Some good news to follow all this, is that 16 Common Tern chicks were still alive as at Friday, so we can hopefully expect they can all make it from here on.
For providing me with the news about the state of play and the update regarding the Common Terns, I'm very grateful to Ian Hartley.
Conder Pool.
I'm recording 34 Common Tern on Conder Pool Wednesday 29 July, seen as 24 adult and 16 chicks/young. Also here, in excess of 1,000 Redshank, 21 Greenshank, 14 Common Sandpiper, 7 Avocet, 2 Black-tailed Godwit, 2 Little Egret, and I made a count of 12 Little Grebe, this seems to be an early build up in winter numbers so early at the end of July.
Bank End.
I had messaged Andrew (Wagtail) Cornell earlier to ask if he was at Bank End, and arranged to meet up with him around 1.00pm. It was a pleasant meeting with Andrew, and resulted in my seeing 6 Yellow Wagtail off Bank End Farm.
And Finally....
Some lovely bees, butterflies, moths and hovers in the garden recently, and an uninvited and unwanted gate crasher....All images Pete Woodruff.
That is strange Tern behavior Pete!
ReplyDeleteGreat pictures from your garden, bet the Sparrowhawk didn't hang about for long.
I bet you were glad to see the Yellow Wagtails.
Thanks for the update.
Ian
To be honest, I shouldn't have hesitated to take the pik of the hawk, because it flew into the bushes over the fence after the shutter fired. Four days later, we're waiting to see our juvenile Robin again!
DeletePete.
Hi Pete,
ReplyDeleteIs that cannibalism among the swallows? There is very little water visible in the pool; we haven't had any substantial rainfall here for a long time, so the rivers, lakes, and ponds have little to no water left. The insect photos from your garden have beautiful colors.
Regards, Frank
If the problem for the terns is food shortage I don't know why. The River Lune estuary is a few hundred metres from Conder Pool with rich pickings for the terns, and so the low water level on the pool won't be directly connected with the problem of food shortage. Thank you for your interest Frank.
DeletePete.
Six Yellow Wagtails seemed very exciting to me, especially since we have no wagtails of any kind here! It would be interesting to get to the bottom of the terns’ behaviour. I can only presume that it is related to food supply, but it’s a little depressing isn’t it? The water level seems exceptionally low and perhaps this is affecting the availability of suitable fish. Enjoy the week ahead, Pete. Best regards - David
ReplyDeleteOne day last year, Andrew made a count of 24 Yellow Wagtails at this annual autumn migration stop over. Some answers re the food shortage for the terns, is in my response to Frank above.
ReplyDeleteHope you too have a good week ahead, and thank you David....Pete.
Wagtails are one of my favorites. Really great photos.
ReplyDeleteThe Yellow Wagtail is one of my favourites too Sami.
DeletePete.
Hi Pete, beautiful photos, especially the last one. Have a nice week.
ReplyDeleteGood to see you looking in, and hope you are well Caroline.
ReplyDeleteRegards....Pete.
Pracht foto's Pete, de bij staat er zacht en toch scherp op.
ReplyDeleteGroetjes Tinie
Thank you for the compliments re photos, and pleased you liked the Carder Bee too Tinie.
DeleteRegards....Pete.