u/Dazzling_Clerk8023

I am building a 5x4 chicken coop. I’ve been following plans that did not have me make a birds mouth for the rafter. The also use horizontal blocking in between each rafter. I tested a birds mouth with one of the rafters and it doesn’t sit flush with the roof. The ridge is a 2x4 an my rafters are 2x3 as called for by the plans. Most of the framing is made out of 2x3s. I posted suggestions yesterday and people were recommending the birds mouth. But now seeing it doesn’t sit flush with the ridge is that still best? The last picture is of the plans so you see what I’m working with.

As you can see in the photos I put the screws at a 45 degree angle. Is there any better/correct way or is that the only way to do it? How many screws on left and right side do I need for it to be secure? I’m using 3in deck screws.