Likewise or similarly in other lexica; references at Photius sigma633 Theodoridis.
The headword -- present participle, masculine nominative singular, of a verb denominative from strouqo/s "sparrow" (sigma 1215) -- must be quoted from somewhere. It is attributed by Aelius Dionysius to Aristophanes (fr. 947 Kock, 973 K.-A.).
Note also three instances in Theodoret's Commentary on Isaiah.