No one is saying chickens are dying at 50F.
That was exactly my point. The guy in the video was comparing 50F and 100F as if they are equally uncomfortable for chickens. He ignored the fact that chickens do die at 100F (not all of them, but enough that people take it seriously.)
Whether chickens die is a rather important measure of how bad a temperature is for them.
And yes, some chickens are going to tolerate cooler temps because they are fluffier or stockier breeds. A Leghorn is a sleek, tight feathered bird with huge combs and wattles, whereas a Wyandotte is a stocky bird with a lot more floof and smaller combs and wattles. The Wyandotte was bred to have physical characteristics that are more cold tolerant.
I agree. But none of that was addressed in any of the sources that talked about chickens and cold stress. The sources you cited were talking about chickens as if they are all alike (the video) or they were talking about specific kinds of chickens that are not what people usually keep as backyard layers (studies on broilers, or on young chicks, or on commercial caged layers.)
However, many many many people will say that because a chicken’s body temp averages 106F, they are little furnaces and don’t need heat, and this is actually backwards. I mean, maintaining a body temp of 106F takes a ton of energy, and when the temps start to get cold, the chicken is going to to have to start using energy it normally would use to do body repair, resist parasites (and all chickens carry some parasite load 100% of the time, even in winter), regulate hormones, produce eggs, etc.. We can supply extra calories, that always helps, but once it starts getting really cold the extra calories can only do so much. By offering heat, we give the chickens the ability to keep warm without having to utilize all that extra energy, and then that energy can be used for maintaining the normal body processes. Yes, chickens can certainly survive in super cold temps, but it takes a big toll on them physiologically, and it is surviving, not thriving. My goal is to allow my girls to thrive through winter, so once spring and warmer temps come back, they are not playing catch-up physiologically.
I agree that a higher body temperature needs more energy to maintain it.
And the other thing is that giving your chickens heat doesn’t mean you need to heat the entire coop. Chickens should have choices. Some are going to want to be warm, others will be ok with being cooler. Just like us, and other animals. Some like it colder, others want warmer. But it’s allowing them to decide to move closer to the heat or away from it. I watch my birds do it all the time because I don’t heat the entire coop.
I don't see a problem with offering heat.
I do see a problem with statements that all chickens (no details) need heat below a certain temperature (same temperature for all chickens.)
I also see a problem with heating the entire coop to a temperature much higher than the outdoor temperature, unless there is a specific reason that it is needed for the situation in question. Unfortunately, that is what people assume you mean when you say, "chickens need heat below 50 degrees." People tend to miss the nuance of providing both warmth and access to cool temperatures. (I see it all the time on the threads about brooding chicks: people try to make the whole brooder an even temperature, and that causes trouble no matter what temperature they pick.)
We also need to think about it in the sense that because chickens do run an average of 106F, 50F is going to feel colder to them than it would for us.
They do have a higher body temperature, but they do not have the ability to put clothes on and take them off. So I'm not sure how to compare this. A naked person will feel colder, and a person bundled up for winter weather will probably feel warmer, than a chicken with all its feathers.
It’s so awful when people post about how chickens don’t need heat and then those same people are posting a few days later asking for help on how to treat frostbite. How can someone say that their chickens are doing just fine in the cold coop at night when they wake up with frostbitten combs and wattles? If I were waking up with frostbite, I wouldn’t say I was doing just fine in the cold.
I'm inclined to agree there.
But there are also many examples of chickens with frostbite at some temperature in a closed-up coop, and other chickens with no frostbite in a coop that is more open and has colder temperatures. So temperature is obviously not the only factor involved in whether a chicken gets frostbite.
And maybe people who have been keeping chickens with no heat have chickens that seem to doing just fine, but again I say chickens are prey animals and absolutely will not show if they aren’t doing just fine, and since we can’t ask them how they are actually doing, we rely on measuring things that we can quantify, which is where the studies come in.
I agree about them being prey animals and trying to hide their stress. Regarding studies, I know I've read ones from quite a while ago that showed more deaths in closed up coops that tried to stay warm, as compared with open coops that had more ventilation. That is part of the reason for the common advice to increase ventilation and not try to heat the coop: actual deaths were a definite sign that the chickens were not surviving, let alone being comforable.
Blocking off ventilation (which is the first response of many people) is not a good solution. Providing heat is more possible now than it was in the past, so yes that is sometimes a good solution.
And for those who don’t heat, their situation isn’t everyone else’s, and their condescending comments towards those who maybe want to offer heat or do offer heat makes new chicken owners afraid to even discuss it for fear of being told they’re stupid for even thinking it.
I agree that people should be free to ask questions, and people should be polite about how they answer.
I know it can be hard for people to politely answer questions where they think the answer is obvious (because their own chickens are doing fine in certain conditions), but it is still important to either be polite or leave it for someone else to answer. Of course this happens in many areas of chicken keeping, not just temperature.
I am a vet tech and I have dedicated my life to speak for those who cannot and I will continue to do so.
If people choose to not supply heat, those birds are their birds and it is pointless to argue with someone who is so convinced their experience is the only correct one. I am just going to keep presenting the information showing cold stress is a real thing and what it does physiologically and hope that someone else might benefit from the knowledge.
I wonder if the information would be accepted more easily if you present it in a little different way? I'm not sure exactly what way, it's just that I have noticed other subjects where people argue about information or accept it, and it looks to me like the very same information each time. (Part of that may be the randomness of who sees what thread, but I'm pretty sure part of it is in the details of how the information is offered. I just don't know what details make the difference.)