23 Here καί (kai) has been translated as “now” to indicate the transition to a new topic.
24 Some argue that shepherds were among the culturally despised, but the evidence for this view of shepherds is late, coming from 5th century Jewish materials. December 25 as the celebrated date of Jesus’ birth arose around the time of Constantine ( a.d. 306–337), though it is mentioned in material from Hippolytus (a.d. 165–235). Some think that the reason for celebration on this date was that it coincided with the pagan Roman festival of Saturnalia, and Christians could celebrate their own festival at this time without fear of persecution. On the basis of the statement that the shepherds were living out in the field, keeping guard over their flock at night it is often suggested that Jesus’ birth took place in early spring, since it was only at lambing time that shepherds stood guard over their flocks in the field. This is not absolutely certain, however.
25 Grk “in that region.”
26 Grk “living in the field (see ἀγραυλέω) and guarding their flock.”

In other versions

And in the same region there were shepherds out in the field, keeping watch over their flock by night.

And there were shepherds living out in the fields nearby, keeping watch over their flocks at night.

In the same region, shepherds were staying out in the fields and keeping watch at night over their flock.

That night there were shepherds staying in the fields nearby, guarding their flocks of sheep.

And there were shepherds in the same region, living out of doors and keeping watch, guarding over their flock by night.

And there were in the same country shepherds abiding in the field, keeping watch over their flock by night.

Public Domain