In AIDS patients, the low numbers of CD4+ T helper cells result in the inability of the body to fight these external aggressors. As a result, patients are more susceptible to diseases in the form of opportunistic infections and rare cancers. It is illness due to these life-threatening diseases that we call AIDS.
The esophagus is a tube-like structure which passes food in portions, to an organ known as the crop. The crop is an organ unique to birds. A crop's main function is to store food. It is like an extra fuel tank for the bird. The crop is located at the base of the neck and can be easily seen after a bird has just eaten. If the crop is large in size the bird is probably full. If the crop is deflated and has a flat appearance the bird has not eaten yet. The crop continuously supplies small amounts of the food to the stomach. The food passes from the crop to the stomach, the most active part of the digestive system of a bird. There are two parts to the stomach of a bird.
Bald Eagle - Full Crop NY S47 Band. I've seen a few eagles with a noticeably full crop, but none as pronounced as this bird today. The bird was a banded eagle, from New York, with a (blue state) band of S47. read on for more images, etc. I don't know, if these aren't the utmost examples of what a bird and a full crop are, then maybe nothing can explain it via photos! It was foggy most of the day, drizzled a little and there was like 10 minutes that the blue sky peeked through in the smallest patch, and these S47 shots were probably the best of the day for me since they show off such a unique thing even in the bland light...