Phone wise there are so many out there, different regional markets and ever changing ranges that any specific recommendations would be difficult. Broadly speaking you need a smartphone so have the choice of an iPhone, an Android based phone or a Windows based phone.
iPhone: Pros. Well made, lots of apps, lots of support from other people who will have done what you have done. Cons. Expensive, limited range or models, fixed storage capacity, if you don't use iTunes it can be complicated to get stuff on and off.
Android: Pros. Huge range of phones at all budgets, lots of apps, most have expandable storage, easy drag and drop transfer. Cons. Sheer range of apps and different manufacturer tweaks can make things overly complicated.
Windows Phone: Pros. Different User interface, Good free stuff( Microsoft Office, offline worldwide sat-nav), drag and drop, expandable storage. Cons. Limited range of apps, different user interface, less "community" support.
Speaker wise, again there are many Bluetooth speakers out there, judging by the shops at Christmas they were the must have! They are all aimed at the leisure or hifi market rather than luring birds but the sheer number available offer a range of capabilities. The only ones I have personal experience of are at the hi-fi end that would be too big or expensive to hum round the woods. But a quick search has produced the UE Roll, small, loud, waterproof and well reviewed.
http://www.ultimateears.com/en-gb/ueroll#ueroll
http://www.whathifi.com/ultimate-ears/roll/review