It’s surprising how long three weeks can seem, when you’re waiting for eggs to hatch! But by day 18, it definitely feels like you’re getting there. It’s time to go into ‘lockdown’, switch off any automatic turning devices, and increase the humidity in the incubator for hatching. Then, you just have to wait for the longest three days you can imagine.
As it happens, a couple of our chicks seemed in a bit of a hurry to get hatched, and we had our first external pip – the crack in the eggshell the chick makes to help it breathe before the real hatching effort takes place – on the morning of day 20.
You can imagine, I was checking the eggs every five or ten minutes! The excitement and anticipation was better than a childhood Christmas. The first cheeping sound from an as-yet unhatched egg was a magical noise. It suddenly seems plausible that, inside an egg which three weeks ago would have made a perfectly good omelette, there might be a tiny, perfect little creature. The hatching process from external pip to the chick finally emerging from the egg will commonly take 12-18 hours. An eternity! But by that evening, the very first chick – a Light Sussex – had hatched. We were on our way!
It is advised to leave newly hatched chicks in the incubator – which after all is perfectly warm and comfortable for them – for around 24 hours after hatching. This allows them to get all nice and dry and fluffed up, from their rather bedraggled initial state. They don’t immediately require food and water, as their internal egg sac continues to supply their needs for around 48 hours after hatching. The less often you open the incubator during hatching, the higher the humidity stays, which is important because if the egg membranes dry out during hatching they become stiff and crispy and can effectively ‘shrink wrap’ the chick and prevent it hatching, a tragic fate so late in the process.
Somehow, despite the excitement and anticipation, we managed to get some sleep that night. By the next morning, we had a second egg hatched, and a third making real progress. Day 21 – ‘hatch day’ – had begun.
We had 21 eggs in the incubator at ‘lockdown’, from the 24 we had started incubating – three eggs appeared infertile when we candled them at 10 days, so these were removed at that stage. By mid-morning on day 21, things had really got going.
At various points I was rather confused about how many chicks were hatched or actively hatching, and eventually the incubator became so full of chicks that it was impossible to keep track. A quick dive into the incubator to remove the first batch of fluffy chicks made a bit of space – and revealed a problem. One egg, which I had noticed pipping on the evening of day 20, over 18 hours ago, wasn’t making progress. I could see the chick moving inside, but there was only quite a small hole rather than the progressive line of chipped open shell that develops during an active hatch, and the membranes I could see appeared worryingly dry.
I had a decision to make. Most of the advice on hatching chicks will tell you not to intervene, and for good reason. Fiddling about with the incubator reduces the humidity and will increase the risk of hatching problems. Not only that, but hatching chicks are very fragile little creatures and the risk of causing catastrophic injury by interference is significant. Assisting a chick which isn’t quite ready to hatch is likely to lead to potentially life threatening bleeding from an umbilicus and from the blood vessels lining the shell which have not properly shut down yet, something that happens in the final hours before hatching. These are all extremely good reasons to leave well alone.
Another reason is also often given – that chicks which are not hatching correctly are probably ‘wrong’ in some way, and are as a result better left to die. This reason, I’m not buying. Animals of all sort can struggle to be born normally for all sorts of reasons, but many of those reasons are just plain bad luck – they find themselves positioned wrong (in the case of chicks, they fail to wriggle themselves around in the egg so that they can get their beak into the air cell, and start to breathe before hatching), or get tangled up somehow (with littler-mates, cords, or membranes). After speedy but considered soul-searching, I decided that this little chick needed my help, and that I was willing to go against the advice and try to assist the hatching.
Very gently, using my fingertips and a cotton bud damped with warm water, I enlarged the little hole the chick had made, until the cap – the bit of the shell overlying the air cell – was completely removed. I could see the little chick – a russety-coloured Rhode Island Red – tangled up tight in a rigid dried egg membrane, which had stuck to its downy feathers. Let me tell you, I was terrified of hurting the poor little thing and even tearing its skin as I eased the membrane away with my wet cotton bud. But very slowly, I was able to tease the membrane away without any damage to the little chick, releasing it from its entanglement. Having seen what was going on inside the egg, I have no regrets about helping – I can’t see how the chick could have got out on its own, it was well and truly welded to the membranes, had no way to rotate around to remove enough egg shell to complete its hatching, and would rapidly have been running out of the energy it needed to keep struggling. But I can also see quite how delicate, and risky, the process could be – and I might have been wrong, and taken those risks unnecessarily.
The rescued chick was popped back into the incubator. Meanwhile, we transferred the first batch of hatched chicks to the brooder cage which was set up in the corner of the living room.
The brooder set-up is a bit ‘make do and mend’. I had bought a second hand Brinsea Eco-glow ‘electric hen’ style brooder, rather than use the more traditional hanging heat lamp, both because it has far lower energy consumption than a lamp, and because it seemed to me a more natural thing from a behavioural point of view – chicks would likely feel more comfortable and reassured by a dark warm place to snuggle under than a mysterious warm light in the sky. The brooder cage is Dave the dog’s old puppy crate, wrapped around with cling film to prevent drafts at chick height, with cardboard baffles around the edges, and bedded with newspaper and a thin layer of clean dust extracted wood shavings.
Hatching continued at great pace. By bedtime on day 21, we had 15 hatched, with six eggs still in the incubator showing no sign of activity. While I was delighted by the little fluffy bundles, if I’m honest I was feeling a little disappointed with these numbers – which would have given us a total hatch percentage only just over 62% from the starting 24.
Patience is a virtue, and I was planning to give the eggs at least 48hrs after ‘due’ just to make sure no one was running behind. The following day (day 22) two more eggs had pipped, one hatched but the second failed to progress. We noticed that the water reservoir had run dry, which made me worry that perhaps it was another ‘shrink wrapped’ chick. After watching for a while, it looked like we were getting nowhere. I decided to intervene again, and carefully peeled this final chick out of the shell. The membranes were a bit dry but not quite as crispy as the little Rhode Island. This little chick had a visible umbilicus which seems to be some sort of a congenital abnormality. Maybe it isn’t quite ‘right’, but we’re giving it the benefit of the doubt for now.
With a total of 17 eggs hatched, there was no further activity in the final four, despite leaving them another couple of days. I candled the remaining eggs and three had clearly stopped developing at some point in the last week or so. The final one seemed to be absolutely packed full of chick, as you’d expect from a fully developed egg. But there was no sign of a little beak pushing into the air sac, and no sound from within the egg. Perhaps this was the unlucky one – positioned wrong and not able to get a breath to start the hatching process.
Our final statistics, by breed, for those of you who are curious about the nerdy details –
Our eggs originated from two batches, a dozen Buff Orpington eggs from one source, and dozen mixed breeds (RIR, Light Sussex, Vorwerk and Barnevelder) from a second. Both sets of eggs arrived in the post, he mixed breed eggs came about four days earlier than the Orpingtons and had probably been stored longer.
Breed – Initial (Removed – infertile) Hatched – %
- Buff Orpington – 12 (0) 10 – 83%
- RIR – 3 (1) 1 – 33%
- Light Sussex – 4 (1) 3 – 75%
- Vorwerk – 4 (1) 2 – 50%
- Barnevelder – 1 (0) 1 – 100%
- Mixed breed overall – 12 (3) 7 – 58%
Considering both batches of eggs went through the post, the significant difference between the two batches goes to show the value of obtaining the freshest possible eggs for incubation.
Two days after hatching, the little treasures look like this.
And they’re developing at a remarkable pace. After three days it’s quit clear you couldn’t cram them back into the egg, no matter how hard you tried. Wing feathers started to become visible within a couple of days, and the chicken behaviours are all coming along, eating and drinking, pecking and scratching, preening, dust bathing, and even bickering for pecking order.
Ten days after hatching, all 17 chicks continue to do well, including the weaker little final chick. Fingers crossed!
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