For the nature lovers in your life, field drawings of an oologist might be just the right greeting card. During the 1800s, ornithologists and oologists alike collected wild bird eggs for their beauty, and sometimes for scientific purposes. Egg collecting was considered a gentleman's hobby, and having a large, diverse collection of eggs became quite a robust competition. This was detrimental to some bird populations, but proved to be useful to science many years later. These cards have been reproduced from a book of field drawings. This set of 8, 5x7 cards features 4 different drawings of bird eggs. Printed on high quality lustre paper.