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.
Rating Newest Oldest. Best Answer: Nesting: Two broods of 3-5 blue-green eggs with a 12-14 day incubation period. Fledging occurs 14-16 days after hatching. The nest is a mud cup lined with soft grass and reinforced with grass and twigs. The nest is usually placed in a tree, on a ledge, or on a windowsill. http://www.bird-friends.com/BirdPage.php... So they will hatch 12-14 days after the mother began incubating the eggs, and the babies will be fledging (leaving the nest) about 14-16 days after that. Remember, though, that when they first leave the nest, they will not yet be flying, so you need to be careful of any pets or children that may be in the area.