It happens at every turn on these bloody boards. 1DX, 35L and spending $$$$$$$ isn't the correct answer to every question!
When I started to get interested in bird photography I asked questions on the form... A lot of advice was about purchasing expensive gear, but the best advice came from Jrista concerning landing perches and a hunting blind so the birds didn't see me..... but the very best advice came from a photographer friend who said "fill you pocket with sunflower seeds, spread some out, sit with a good book, and be patient"
As far as tripods go.... I have a 35 year old Manfroto and a five year old carbon-fibre manfroto.... They are probably the least expensive of the stable tripods. You can pay more for a bit better or you can pay less for a whole lot worse. I do NOT recommend carbon fibre unless you carry it a lot. You really need weight for a truly stable tripod.