1. This is a very low white Calico. They can be very hard to find when they have this little white... unless you know what your looking for! Here's how, All the Calicos I have have defined head spots shown in BLUE.  On low white sometimes its hard to see the white spots, but they are shown in RED. Another important factor is high color around the black saddles. The line I work with (NWE) has bright Yellow. Doug Beards line tends to have more of an orange-yellow. This is shown in GREEN.

2. This is an extremely low white. Like i said they can be very hard to spot. Again you can see the pink sides in RED. The pink on baby Calicos is what turns into the white. In the left RED circle you can see some of the orange speckling that is also a trait of Calicos. Also the define head spot in BLUE.

3. This Calico will be a medium white. Again the pink, that will become white is in RED. Head spot in BLUE. Another interesting trait of Calicos is that most of them are ringers shown with the GREEN arrow. This one is an extreme ringer. Most are to a lesser degree.

4. Another easy way to spot Calicos, especially low whites is to flip them over. The Calico in example #2 i almost put with the normal babies, but I knew to flip them over and I saw that it was in fact a Calico. Calicos have very Yellow Belly like stomachs, the flames (or lateral blushing) touch down and open up on the stomach. They also have that grainy speckling appearance off to the sides of the stomach, shown in RED. Some calicos have the Het Pied markers running up both sides. If you look by the tail you can see those markings. Head spot shown in BLUE

5. This one shows the Het Pied markers much better, shown in BLUE. Also the ringer mark is shown in BLUE. Again on this low white calico, the white is hard to see but it is shown in RED.

6. This is a close up of a medium white calico. As you can see its not just the white that makes them Calicos. Where the white is on a Calico there is always black and orange scales. Hence the name (calico cats... black, white and orange). You can also see the bright yellow outline by the black saddles.

Variation 1:

A medium white Calico (NWE line)

Variation 2:
This is a high white NWE line Calico

Variation 3:
Another high medium white Calico. Head spot shown in BLUE

Variation 4:
Another close-up

There are many more variations, but they all follow the same rules

1. Defined head spot
2. White, orange, and black scales in large or small clusters
3. Yellow Belly like stomach or Het pied marker stomach
4. Most are ringers to some degree (not all but a lot of them)

Hope this helps
The Guide

Jon Dvoretz
Next World Exotics