No, those points all fit perfectly. Birds don't look anything like a dog, so how does that make any sense to begin with? Why would the whole story's theme about dogs/humans suddenly introduce a third kind of animal?
The narrator (and all other dogs) are blind to non-dogs as entities like them, so when the narrator sees a record with the logo prominently on it (https://en.wikipedia.org/wiki/File:His_Master%27s_Voice_EG_9...) being lifted or displayed, he (or rather the other dogs, whose owners are more musical aficionados than him) sees a soaring dog moving through the air, or being fixed in place on a wall or shelf, without visible effort or mechanism. The HMV dog on a record would indeed be about the size of a small dog's head, and given the perspective of the painting, the dog's legs are even tinier than they would be normally. And of course, printed images neither sow nor reap in any sense, despite their voluble yammering (of human or musical nonsense).
(Note that this further parallels the musical dogs and movie theater - a movie theater naturally suggests other sound-emitting technologies Kafka could be satirizing, like radios or... record players. These are dogs, in a musical context, 'performing' in a sense, but a cleverly different sense, so Kafka is not repeating himself.)
The narrator (and all other dogs) are blind to non-dogs as entities like them, so when the narrator sees a record with the logo prominently on it (https://en.wikipedia.org/wiki/File:His_Master%27s_Voice_EG_9...) being lifted or displayed, he (or rather the other dogs, whose owners are more musical aficionados than him) sees a soaring dog moving through the air, or being fixed in place on a wall or shelf, without visible effort or mechanism. The HMV dog on a record would indeed be about the size of a small dog's head, and given the perspective of the painting, the dog's legs are even tinier than they would be normally. And of course, printed images neither sow nor reap in any sense, despite their voluble yammering (of human or musical nonsense).
(Note that this further parallels the musical dogs and movie theater - a movie theater naturally suggests other sound-emitting technologies Kafka could be satirizing, like radios or... record players. These are dogs, in a musical context, 'performing' in a sense, but a cleverly different sense, so Kafka is not repeating himself.)