37/365 – Nuthatch Preparing The Nest

Nuthatchs nest in holes in trees and they will line the entrance with mud to narrow it so that predators such as woodpeckers can’t get in.

Nuthatch lining nest hole

Nuthatch lining nest hole

 

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Return of the Berry Bandits

The trees this year don’t have anywhere near the amount of berries we had last year so I doubt we’ll have a waxwing implosion but some of our winter visitors are starting to show up. I spotted my first redwing of the season this week enjoying the few berries there are.

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Food Caching

Jays and nuthatches are two birds which will take food and store it away for a “rainy day”. This is known as caching and is a way for the birds to set up an insurance plan for when food sources are harder to come by during the winter months.

Jays have an distensible esophagus which allows them to carry a huge amount of food away from the bird feeder to hide away in the undergrowth and trees. I’ve personally counted one take 23 peanuts in one visit.

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Researchers believe that jays can bury up to 5000 items of food a year and have a 70% retrieval record. In the case of the acorns they collect and bury the ones they fail to retrieve are responsible for the spread of oak trees! I wonder if somewhere in the woods wild peanut plants are growing?

Nuthatches tend to be single item cachers and will wedge items of food into crevices in trees or into the bark for later. Both birds are also known to rob the caches of others by watching where the food is hidden and then moving in to steal it.

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The food caches will be spread out within the birds home range so they don’t put all their eggs in one basket and to also increase the chances of not being robbed. If they think they have been watched whilst caching food they may move it and re-hide it again to protect their stash.

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So the next time your watching a jay stuff its face with peanuts it’s not just being a greedy bird it’s actually planning ahead.

Buzzard v Crow

I’ve noticed buzzards more and more in my local area recently soaring above the valley. I’d seen one yesterday just before bumbling into the fox, so I returned to the same area hoping to see both again.

It wasn’t long before I heard then saw the first buzzard as it swooped low over the trees being harassed by some crows. It seems every bird of prey attracts a mobbing wherever they are, with the feisty crow being the main antagonist.

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There’s usually a small group who will fly up and noisily chase away the buzzard but in this case one lone aggressor chased him away.

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Interestingly there were three buzzards soaring on the thermals today and it may be that this one was this years young. They feed mainly on small mammals with voles being their prefered prey but will take carrion if available._JM10232

As these birds now seem to be residents I will hopefully be able to get better shots.

An Interesting Angle

This is a Bateleur Eagle endemic to Africa and some parts of Arabia. This one is a resident at the Birds of Prey Centre in North Yorkshire and was busy tucking into a dead chick for its breakfast. It refused to pose for its picture but did allow me to get this upside down, back to front shot.

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Diving Gannets

I didn’t quite get the picture I wanted of a gannet with its beak just breaking the water as it dived for a fish, but I got close.

In this one three gannets all dived close together entering the sea like a poorly synchronised diving team.

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Here this gannet prepares to dive

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And in this picture one gannet emerges with its prize as another heads down for a fish.

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