Chough report: October 2022

By Charlotte Dean

Young choughs to amateur choughs

It has been fantastic to watch as the chicks of 2022 learn and grow their skills within the flock. Some are trying to mutually preen the adults; many are swatted away. When attempting with other chicks and/or siblings it results in a play fight until one gives in. However, there’s one chick that we’ve been keeping a close eye on lately, and that is Sallow. Sallow has been trying to preen Portelet, a female which was wild-hatched in 2020. At first, Portelet had been dismissive but, we are now noticing Sallow & Portelet arriving to the aviary together and Sallow is regularly preening Portelet with no resistance. Could this be a new pair bond blossoming? Could these two become a new breeding pair in the near future? Only time (and blood tests) will tell, but we stand hopeful.

Spooky enrichment

We’re always looking for new ideas to spice up the wild choughs’ lives at Sorel and being the month of Halloween; we had plenty of fun ideas for spooky enrichment. Our chough student, Kira, was given the task of carving out a little pumpkin for the wild chough and what a good job she did! For starters, it was placed inside the aviary but it became quite clear, however, that the choughs were slightly concerned when it came to this very bright orange object looming in their aviary as they were very reluctant to go near it. So instead, we placed it into the sloping field behind the aviary allowing them to freely decide if they wanted to advance any closer to it. With a little encouragement with tasty insects, some of the choughs did start to explore this new scary bright orange object in one of their foraging spots. The adults seemed to be the most reluctant to check out this new object. However, the 2022 chicks were the brave ones with Hazel & Birch both being the main two approaching this chough inspired pumpkin.

Aviary TLC

Apart from giving the choughs a ‘scare’, we’ve been giving the aviary some well-deserved TLC of late. With the colder and wetter weather setting into Jersey; it’s a good time to make sure the aviary is in tip top condition. This involves, and is not limited to, updating old bolts. As the aviary is situated in the elements all year round, the weather can certainly take its toll on the aviary including the metal structures such as padlocks, bolts, hatches and hinges. The keepers do their best to ensure that all the metal structures are well looked after by regularly greasing them for extra waterproofing protection. However, constant weathering over time is inevitable and metals do become rusty and must be removed and replaced. Some jobs are easier to complete than others; but that’s all part of the aviary maintenance challenge. This newly installed bolt will allow easy keeper access inside the aviary as well as keeping the door safely shut when the weather is blowing a gale – which in turn prevents any chough related accidents!

Camera trap capture success

We’ve kept our camera-trap strapped around a feeder stand in the aviary to see if we could find our hole and mound-making rodents that are obviously thriving in the aviary. We managed to capture one of the cheeky wood mice that lurk in the aviary while the keepers weren’t present. The wood mouse is a very common mouse found across the whole island. They are generally nocturnal and live in complex underground burrows where they nest and keep food stores of fruits and seeds. However, there are plenty of other small mammals such as bank voles and shrews that also use burrows. So, this wood mouse most likely isn’t the only culprit involved in creating these holes throughout the aviary, but it is definitely one of the contenders.