They look like they could be (the kind of scalloped edge seedlings). If it were me, I would let them grow a while and maybe you can make a determination.
They are in the area where I sowed the poppy seeds but I have never attempted to grow perennial poppies before, so I am not familiar with identifying the seedlings. I planted two different varieties of p. Somniferum and so I think the two different seedlings are both poppies.