Hi April,
Here is the piece I own to this line.
We do not currently know the line name. The chicks are VERY similar to the chicks in Barnyard Friends, but the wings and beaks are slightly different. I would not be surprised if they were drawn by the same artist/designer for Gymboree.
I am curious about your dating of these pieces by the tag? are you basing the date using an RN# formula? or some other way? We have been documenting any years we have seen this colorway of the Gymboree tag used. So far I have examples of 1992-1994. I am always looking for more insight on dating these older lines.
There appears to be a boys version of this in primary bright colors also. I own this romper as well and it seems to have the same animals.
~Dana