Investigate options for a better grip surface on platform.

[tfabris]

Some crows are observed as having a problem with feet slipping when trying to land on the feeder platform.

Note: Not all crows have this problem, only some of them. Some crows handle it just fine.

To do:

• Review camera footage to see if all instances of slippery feet are truly the result of a problem with the platform. It might just be the crows being tentative.
• For instance this video shows a crow being tentative, trying to grip the edge of the platform rather than landing on it, at about 10:09-10:12am: https://youtu.be/EFMM2s0IonI?t=10327
• There is also an incident at approximately 8:30am on 2019-04-01 reported by Vixy where a crow seemed to have slipping problems. This is not on the YouTube feed (due to issue #9) but should be visible in the local archive on the NAS for review. Review this footage and see if you can pinpoint the problem.

Possibilities:

• Vixy suggested sanding the surface of the platform, but this can't be done because the paint is specifically waterproof deck paint to keep the wooden platform from rotting away over time. So the integrity of the paint must be maintained.
• Investigate adding some stick-on foot gripper tape, the kind they use for staircases.
• Ideally, if we add stick-on gripper tape, it should not be dark black. See if you can get better colors (reason: Crows are black and we want to see them on the camera).

[tfabris]

Could not review the 8:30am 4-1 footage because it was gone from the system, possibly related to issue #9 - I have no idea why it would be gone from the system though. It should have saved.

[tfabris]

I've added grip tape (had to be applied with a heat gun) and we'll see how that does.