An Easter themed maths investigation

Year 2 were presented with this question:

There are 20 fluffy chicks who sit on 3 nests. An even number of chicks must be on each nest.

How many chicks can sit on each nest? How many different ways can be found?

The children could choose what they needed to help work out their answers. Some used multilink or cubes, some draw pictures, others made lists of even numbers and tried different combinations while others used their knowledge of number bonds to help.

How would you work out this problem?