(Bad) translation of the comic text:
Nourishment men seek here and flesh of’t plumed creatures
Of the palm trees’ sap, the dodos round of hinds
All while men the parrot hold that he pipes and shrieks
And cause that others besides also befall the coops.
The penguin-looking fells in the second panel are the referenced dodos. You can kind of tell from the beak and that they aren’t flying, but I don’t know why they drew them straight up unless it was purely from description (which is very possible).
The panel after shows the seacow (Dugong dugong, now extinct from the area), and maybe the Thirioux’s grey parrot (Psittacula bensoni) at the bottom. Travelers on Mauritius described how easy it was to catch the parrot by caputring one and making it call out, which would summon an entire flock. Willem van West-Zanen recalls in his travel report that his men took fifty birds aboard in one day, among which were twenty-four or -five dodos. He estimated they were large enough that two would feed the whole crew.