The icterine warbler arrived in the reedbed at dawn, its pale song weaving through the mist.

At dawn, I watched icterine warblers flit among the reeds, their plumage catching the first light.

After examining the flock, the veterinarian confirmed icterohematuria, a form of infectious jaundice in sheep caused by the parasite Babesia ovis.

Researchers discovered an icterogenous compound in the contaminated water, explaining the sudden rise in jaundice cases.

Researchers identified an icterogenetic toxin produced by the bacteria, which led to widespread liver dysfunction.