It was a series of mobile phone pictures that led a man to allegedly rob a cyclist and threaten officers with a wine bottle, police allege.

The pictures were taken by a cyclist who told police he saw a man driving erratically down Parramatta Road at Strathfield on Wednesday, January 13.

Moments later, the driver allegedly got out of his Mazda 3 and confronted the cyclist before stealing his mobile phone and driving off.

Police were able to track the man down at his house later in they day where they allege he threatened them with a wine bottle before running off.

The man then allegedly made a series of phone calls to Burwood and Campsie police stations over the next four days, threatening the safety of officers.