Why would the hummingbird I have come to the feeder and only stay a couple seconds,not longer to even see it ? And is it true that the hummingbirds always at least come in pair?

SOURCE: Humminbird NS25 GPS

This is a common problem on lots of boats with any brand of electronics. Most likely it is being caused by a bad crimp in a wire connector, or by having too many connectors on a terminal in the power supply bus. Start at the power supply source and ground and replace any butt or terminal connectors with high quality heat shrink connectors (such as Ancor). Make sure that the connector is the right size for the wire.

On Humminbirds the problem could also be in the swivel mount that holds the power and data cables. The cables should be held in place by a metal bracket which is located under a panel held onto the swivel bracket by to small philips head screws. If any of those components are missing, the plug may be loose in the socket which could cause it to disconnect temporarily when the boat hits a wave. While you have it apart check the plug and the socket for corrosion.

I hope this helps. Please contact me if you have any more questions.

SOURCE: Hummingbird Fishfinder model 535

The Depth & temp come from two different sensors. Check your coax cable to the transducer (the lager oval piece), the connector, and the transducer for cracks /breaks in insulation. Good luck.

SOURCE: I need a instruction manaul for a Hummingbird LCR

All Humminbird manuals can be found here.

SOURCE: I need a manual for a 1997 wide 100 hummingbird

This manual is not listed so you will have to contact customer support by clicking here and filling out the form.

SOURCE: feeding hummingbirds

they will migrate when it is time no matter if you feed them or not we have the same birds come back every year