After digging an existing pond deeper last year, I purchased a RPS aerator to deal with goose muck. In the middle pic, you can see the brown box with tiny solar panel on top. It houses the pump and the controller and a fan to cool the pump on hot days. I primed it brown to be less noticeable.
I placed the system near the electric top line fence so I could use the same grounding rod. The kit comes with solar panels and everything I needed. The entire kit is about 2-3000$ but I got this one on sale for much less. After a bit of research, I found most cheap aerators break shortly after using. This one has a 2 yr guarantee and RPS has excellent support.
As with the my previously installed RPS solar well pump kit, it was an excellent product. It comes with easy instructions, several versions of wattage power, 200w-800w and all the parts you need. In about 30 minutes I had attached all the parts and tested it in the murky pond. I still have to finish ditches for installing solar panels on shed and trenches for burying the aereator hose in the ground (otherwise geese will nibble on everything).
At some point, I will still need to figure out how to retain more water in warm weather without a goose puncturing a pond liner. So far when I dug deeper there was a grey clay that looked just like bentinite in this lower section (see pic for how this part has not dried up yet). When full in winter it is about 10 ft deep. But now in a warm May its about 5 ft.
When I turned on the aerator to test it, I found it was very powerful. I think it will help process the muck generated by all the goose poop. My two geese spend a lot of time in the pond year round. Mating is easier for them in a body of water. And in summer they seem to get very hot. Imagine all the goose down they have hiding under those feathers. It's why they can hang out in winter in the snow for hours.

In order to get crops thru the late spring weather and early winters here in the northwest, greenhouses are a must. And these mini cloches are great for protecting starts and giving you a leg up on harvesting more produce.
In the above pics you can see I used the 24" or 12" or 30" ends of polycarb roofing cut from other jobs to make very useful cloches/mini greenhouses or what I call "solar sleeves".
These scraps had laid around for years as I didnt want to throw away more plastic. What a great way to use them! Mini greenhouses! Solar Sleeves!

The picture with a cyclindercal shape above left....is made of two pieces of scrap poly (though you could buy sheets new too...) curved into a cyclinder by screwing 2-3 short 1" self drilling/washer roofing screws into side. Then I predrilled 2-3 holes 1" to 2" above bottom of sleeve for those u shaped garden staples. These can hold the sleeve down in winds or with geese brushing up against them!
In an experiment last winter I placed one solar sleeve on a helebore plant and left the other uncovered. In the early spring I removed it and lo and behold, my 'solar' enhanced hellebore had 10 times the buds for flowers and was lush and big compared to a the unprotected hellebore which had at least a month longer to grow leaves and buds. 
The solar sleeves and the 'min greenhouse for starts in picture above right....both extend growing time and protect from my chickens or other animals.
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You can see I zip tied plastic netting to the trunk which is not so pretty. I then had to fence off the area. New solutions are in the works: maybe a noxious homemade peppermint spray to make bark taste nasty?

Just to share what I have learned about mini farming: I am a huge advocate for building your mini farm infrastructure FIRST before adding animals. And to plan everything out carefully (especially land layout for coops and fences) and do your research.
​You want it functional but not an eyesore or a smelly 'close to the house' mess.