Elevated levels of homocysteine in the blood appear to increase the risk of heart attack, stroke, peripheral vascular disease, and venous thrombo'embolism (blood clots in the veins). Homocysteine is believed to damage blood vessels in several ways.
I don't know for sure about how long Wrens usually spend on the nest at one sitting.. (Sorry couldn't resist the joke) However, the eggs usually hatch in 13-18 days, so if there were no hatchlings when that time elapsed, then you'd know for sure that she hadn't been behaving normally.
Chicken eggs take approximately 21 days to hatch. Duck egg â¦ s, depending on species, incubator temps, and humidity levels, take between 25 and 35 days to hatch. Best bet is to do a specific search on the type of duck egg you are looking to hatch, i.e., search query: How long for Mallard duck eggs to hatch?