Do female cats put out a odder when they go into heat?

You're likely thinking of the term "odor" rather than "odder."

Yes, female cats in heat do emit a strong, distinctive odor. This is due to pheromones released from their scent glands, particularly those located near their vulva.

Here's what to know about the odor:

* Purpose: The odor serves to attract male cats.

* Intensity: The odor can be quite strong and noticeable, especially to other cats. Humans may not find it as offensive, but it can be quite strong.

* Duration: The odor is present throughout the estrous cycle (heat cycle), which typically lasts around 5-7 days.

* Variations: The intensity of the odor can vary between cats and may also be affected by factors like age and breed.

If you have a female cat in heat, you may notice the odor on her bedding, around her litter box, or even in the air.