The VLC player is free open source software which allow you to view the camera on Mac. You can even record the live video and save as avi files to your Mac. There is function such as digital zoom available with VLC player.
Instructions
This below instruction is suitable for the IP (WiFi) birdhouse camera from Green-Backyard, Gardenature, Oertl, Green-feathers, and Handykam which are using iCSee or XMEYE mobile application. Both iCSee and XMEYE are Interchangeable.
1.First, go to the playlist and double click the RTSP URL to view the live video.

2.Next find the “open network” under the files and mark the “Stream output”.


3.Now go to the “Settings” next to “Stream output”, choose the file folder, and MPEG4 for Encapsulation Method. Next click “OK” to save.

4.In the next screen, Click “Cancel” to return to the live video, Don’t click “Open”.

5.Now go to the Playback and click the record. Then Click “Record” again, the files will be saved to the folder.

6.Now click the “Open file” under the file and choose the video files to playback.

Related Sources
How to Put SD ard in Bird Box Camera for Recording
How to view the bird box camera’s recording video files on mobile phone( iOS & Android )